Here is the changelog:
It's in imgur album form to help show the changes themselves

====NEW RELEASE=====

We're finally in b7c for the Pro version! This has a ton of changes, and i'm not exaggerating, many of these changes should change how the map fundamentally flows.
The changes were mostly added to get this going for 6v6's which is this map's primary target.

Here's a picture to prove it:

http://i.imgur.com/MAA22gj.jpg

Happy Playing!
https://www.dropbox.com/s/9650y2wdq4uql3p/koth_sandstone_pro_b7c.bsp?dl=0

I've been updating sandstone finally today since my other map is finally public (this map) and i've enjoyed the changes so far, however I lost my feedback notes, so if I missed anything major please comment just small notes it'll jolt my memory. (These are still untextured as well)
I posted a imgur album with the changes. The lighting will be off since it's a fast compile.
Here is the album

Map has been updated to b6!
This fixes all the bugs that are displayed above, except the sniper sightline as that is both impossible to fix and impossible to get to!

This includes:

-Optimisation, the map runs as well as Viaduct now
-Fade distances are now included
-Made fences no longer possible to kill those on the other side with a sticky bomb
-Also changed the fence's texture
-Capture point zone trigger is lower, no more standing on pillars to cap
-Stairs are a lot sharper

Known bugs:

-Some skybox elements fade too early, doesn't affect gameplay AT ALL

Download: https://www.dropbox.com/s/pm88abyeudfrkjd/koth_sandstone_pro_b6.bsp.bz2?dl=0

Have fun out there, be sure to send feedback

http://puu.sh/bielh/707bd2b586.png

Here is the highly anticipated B5, this is mostly an internal change-up that's going to streamline everything but there are also some pretty cool changes to the aesthetics to check out

http://puu.sh/bgMCE/2e46062aed.png

Changes include:
~Major update to health and ammo
~Structures have been recreated, some changes might have occured
~"House" has had 3 routes blocked off, and is dimmer in a section
~Blocked off some giant sightliens with chicken-fence
~Clipping is fixed
~Major aestethic update (Including all torches being exactly the same now, and an updated skybox)

Known bugs:
~Optimisation is a lot worse, the map may not run well on some machines especially at high player count, this is the primary focus of b6

If you guys are willing to overcome the optimization issues give it a playtest! I'd love to see what everyone thinks of all the new changes

Here is the download

https://www.dropbox.com/s/v6g7c9m4vwjbl3l/koth_sandstone_pro_b4.bsp
B4 of koth_sandstone is here, this is more of a "placeholder" version as there are dozens of visual bugs that my remake should hopefully fix. b5 is going to be awesome.

Happy playing!

So, I managed to grab an a few hours of spare time, and decided to work a bit on B4.
So far i've added in the major changes, to help improve ammo and health placement and flanks along with other smaller changes to sightlines.

Here is an imgur album of all the changes, I wont spam my thread with images, each image was taken in the editor so there is no lighting and stuff. A lot of this is placeholder as I intend to remake the map for b5 (due to technical problems on my end, the layout should be the same though)

The latest version should be up in a day or two

Smaller changes I didn't note:
-Spawnrooms should have no build, I didn't test it though but I did everything right.
-Spawnroom blocks are now only on the doors
-Moved the tree slightly
-Various other bug fixes
Question, what are everyone's thoughts on me turning the cave on the side into a building? Will this mess up people calling out and stuff, since it's unique?

All of this feedback is really exciting, the next version is going to be amazing for you guys, but sit tight because it's going to take some time.

The first PRO version is now released!
Click here to download it

Better yet, here is the ip for my server(Sydney australia) That will be hosting it for a few days.
27.50.72.254:27055

All feedback is welcome and whatnot, even tear it to shreds.

Did anyone end up finding a solution to this problem? My mouse has the exact same problem and it's making everything on a computer a pain.

Edit: Turns out blowing hard into the mousewheel fixes the problem.
Who would've guessed.

B1 PRERELEASE
Ok So I think i've fixed 90% of the intial problems with the map.
So i've decided to create a pre-release, just for walking around the map and giving pointers. This in NO WAY SHOULD BE PLAYED AGAINST PEOPLE, this should be strictly for looking around and testing skybox, rocket jumping, clipping etc.

The pre-release doesn't include
-Cubemaps
-Skybox (Please send a picture of how high you think it should be)
-Extra spawndoor on both sides (one is glitchy)

Please feedback:
Skybox height
How fast it runs
Visuals
Gameplay
Health+ammo Placement

Here is the download: https://www.dropbox.com/s/jkx66m71l62agm8/koth_sandstone_pro_prerelease.bsp
here are some pictures: Album link here

http://i.imgur.com/8laRwWS.jpg

Sight lines should also be fixed.
Have fun!

Doing a little touch ups:

http://puu.sh/ajqu4/70f43ed4c3.jpg

Also torches are toggle-able because they count as whether!

http://puu.sh/ajhMe/5ca1581499.jpg

Are you guys ok with the lighting like this? Or would you prefer I use construction lights?

I just completed the trailer for it, so now I can go full force into the _pro edition!:

https://www.youtube.com/watch?v=uEd0yqI8KIM

Reddit Thread

Thanks for all the feedback, can't wait to get started on the pro variant.
As for those that wonder what it will look like in day-time.

http://i.imgur.com/e4M36Fj.png