So here are more combo cookbook ideas... Mostly extensions. Add more if you like.
Extended Westick + Fists o' Fury
Sthomas (all upgrades, but Fists o' fury especially)
Westick (all upgrades)
Sticorey (all upgrades, I guess. Not needed though)
So the point is to slowly raise the Ultra Bar without interuption. Simple.
Unbreakable Chain +
Marcstick (Chain Finish)
Sthomas(left of Marcstick, Fists o' Fury)
Now, I have not tried this yet, but the point is to chain combo the foe, no interferences, and slowly fill the Ultra Bar.