Paragon_1Oh okay I understand I obviously didn't read the whole thing. Hm.... I can give you what I use in my autoexec.cfg file
You set updaterate and cmdrate to two different values in that autoexec, neither of which is right (for 66 tick servers they should both be 66)
rate should be as high as your internet connection will support. Most servers (nfo by default anyway) seem to enforce rate 100000 so it doesn't really matter what you set it to
improper syntax on your interp line
fps_max shows up 3 times, only one of which is commented out
This is why you should garner at least a basic understanding of netcode and not just copy/paste from whatever you find on the internet. Also none of these should affect spikes/stutter at all. It's far more likely either an ISP issue, or a server issue. Personally, last time I had a problem like that it was because I was using wireless from somebody's cellphone data set up as a tether (bad idea)