Okay, I don't have much experience with custom maps, so I'm not going to rate this fairly. It's awesome, you're awesome, you kick my ass regularly, and I like TF2F, so I'm giving it five stars. To be honest, I'm waffling between four and five on the basis that it deserves a five in my opinion but I don't know enough custom maps to rate objectively.
Basically, you deserve five stars, but what the hell do I know?
I played this solo for a couple minutes, and it was a lot of fun. The long fall distance seems to be modulated, since the medic fell and took 10 damage, and the scout fell - jumping at the last second - and took 12. This is weird but that's okay.
I love that you can attack the 8-ball so long as you don't touch it (as opposed to just having to hit it with other balls.) This seemed really dangerous/cool to me at first, until I realized that weapons other than melee work well (I started as a medic and needled it to little effect.) I can only imagine how a nice fully-charged sniper would hit, but I know I had fun rocketing all over the map with scattergun (awesome!) and baseball bat (surprisingly hard-hitting.) I would love to play on a big team and get a little ball of doom action going with me and another friendly scout.
If you get right next to a ball and look almost straight up when you fire, it does a nice jump shot. I didn't seem to have much success with using english, though.
Why aren't there any consequences for scratching the 8-ball? I even knocked in all but one of my team's balls and then scratched, to no ill reply. What suggestions would I have for such consequences? No idea. So don't take that criticism too harshly.
If anything I've said seems too harsh (I think you can probably handle it, you are BIG Lou after all,) I'm sorry - it wasn't intended to come off that way.