I have the new Mollys V2 (same as old ones but with open bushing seat front and 5mm rake front) on a 45º/25º split like @Jon LaPlant in a Rocket do mini nation (20.25 inch wb). I have tried 30º and 20º rear before and I feel like 25º its the sweet spot, not too dead, not too unstable.
I use both sphericals after trying the original riptide and the venom 93 and 95 plugs. I have also tried to use plug rear and spherical front, but damn, the sphericals feel and perform amazing compared even to the venom plugs, that are already a stright upgrade from riptide's.
In regards to bushings, I haven't tried running short ones but I don't see the point of doing so either. The lean on this trucks is great and I don't have any wheelbite problems so I feel like it would just increase rebound in a non desired way or create a weird hardstop. Also, I dont want the washers to chew in expensive hangers hahahhaha. I'm currently running tall barrel venom HPF 85/85 front and 93/90 rear with flat washers, but i feel a bit of wobble on high speeds, so I will try higher duros soon.
With this setup I feel like I can do standups and checks with no problems because the rebound is very controllable while still having a clear center. I've never felt the board launching me to Mars after a slide and getting back on a straight after a quick coleman feels like a breethe, so yeah, very lively and fun until you want to tuck your way over 70km/h on a not-so-perfect road, let's see if I can fix that with harder bushings.
Btw, dont trim the venom plugs, it's a tight fit but I think its very needed, just apply force and you'll get them there.