A long time ago, I made a post on gotfrag describing a concept for an experimental pl map designed to be played in 6s.
The idea was to fundamentally alter the pl mechanics to remove what made pl unpalatable for 6s players. The main differences were:
1. Once the cart is set it motion it will stay in motion until an enemy player stops it by entering the capture zone. This was to remove the problem of one or more players having to stay glued to the cart at all times and to make the game more about preserving momentum rather than slowly moving the objective forward after you win a fight.
2. The cart moves much faster in general to reward the attackers more for winning a fight decisively.
3. The cart will begin to move backwards after only 5 seconds of being stopped and will move backward at a much faster speed than in regular pl. This is to give the defense more incentive to get aggressive and to reward them more for winning a fight.
4. There is no set up time. The defenders would have to rollout quickly if they wanted to set up an early defense or give up a bit of ground if they wanted to turtle with a heavy or an engineer. This was supposed to make the first fight more dynamic and to encourage a greater variety of strats.
5. The map would have 3 points total and would be played by stopwatch rules.
When I made the thread on gotfrag, I was somewhat encouraged by the positive reception my ideas received, so I decided to work on the map a bit. I was able to get the cart to behave exactly the way I it wanted to, but I got bogged down in the creation of the map itself and lost the will to continue.
I still think its possible that this concept COULD work and regardless it would be an interesting experiment.