I can add some more infos. (I still use circle restrictor).
Food Fight - analog mode works excellent, I'm ready for world record now.
Kowal say that for fighting games U360 is weak. But maybe he must more play on this stick. I will test this stick on fighters too. On MARP is K5 tournament now. I will play all games on U360, fighter should be too.
I played a bit on DoDonpachi, excellent work but a bit harder spring could be better than default. Additional springs available in Ultimarc shop are too hard.
Changing modes from 2/4/8/analog to other is very easy, 3 clicks in UltimarcMap application. (first one click - show list of modes, second click on mode, third click to program joystick).
You must know that you don't feel stick in hand, default spring is very light.
I will write here notes for this stick in some games (max note is 10). I will add more in future.
Over Top (driving, 2-way) - 10
Food Fight (maze, analog) - 10
Tiger Heli (old airshooter, 8-way) - 10
Star Force (old airshooter, 8-way) - 10
Maniac Square (drop-down puzzle, 4-way) - 10
DoDonpachi, DonPachi (shmups, 8-way) - at this time I give 8 for default spring but maybe I played too long on hard P360 spring. This note can be changed. -> I played a bit more. Note will be not change. I installed additional harder spring, it's totally bad, additional springs are useless. I must find new better spring.
EDIT: after install new Ultimarc spring note is 10 for shmups EDIT2
(2) angle counted precisely with center in rotation center is 9 degrees (with circle restrictor plate). This result is most precisely.