A lot of people tend to switch to a worse shikai before fighting their bankai but whatever you do NEVER use explosion at bankai fight as the boss can heal from 25 percent to 100 using the bankai move
I was about to beat me bankai once without this method but then at the last few health the server in the region which I was in just had a sudden ping spike and then I just got killed.
this happened to me fighting hollow prince. I got to the last arrancar and halfway through that part of the fight my game crashed. It was very pleasant tho, i came back and finally beat the hollow prince.
So I used this for Bankai, and it works still since both you with your spirit having the same weapon yet for Hollow I believe this was patched due to the Fullbringer update with a bit of proof from myself since I have a Max Level Hollow (With a high Strength build with Vessel). The Spirit for Hollow has its own Weapon for Phase one being "Fist Weapons" something Fullbringer has but its just as fast as any Dagger Weapon in the game, and yes it is because in my own testing Guns were just slightly slower than the "Fist Weapons" by a few seconds. However second phase though due to me having Vessel is basically sheer luck since Dashing with Vessel deals damage so its sheer luck if I can even hit my Spirit but overall it can work the same as the Bankai fight. Just have an ability that doesn't bring you close or break your block by a Dash you can easily beat your Hollow sided fight just as you would with Bankai fight so to anyone out there this still works.
Guys get in a new server with good ping do that is helped me alot plus if your fighting your shikai boss don't! Use non of your abilities just unequip your abilities
a tip for yalp here: Some skills in game have a long ass duration some will stun and dont let the boss transform (the only skill i have 100% sure its chaos secunda) you just need to low the boss to low hp and use it and he will not transform i am testing some other things but ive discovered that if you use gem of exponentiality on some high damage moves get the boss to low and he get the delayed damage u just kill them without the transformation(looks like only works with voltboss) I gotta test apocalypse volt skill rn and see if the 20% guaranted kill Works
Expo gem thing works on ANY boss speaking from experience that's how i got my bankai maxed easily, basically just get your stats all in strength/spirit then apply expo gem to some combo starter and use the combo starter on the boss and do the combo, if you get enough attacks in combo the boss will probably get one tapped by expo gem skipping bankai/segunda/volt phase
also i have a way to cheese bankai glacier boss with 490 spirit easy in 15 second if you have discord or smt i can show to u i have a clip of me one sot the boss easily also w vid i also use same way to beat bankai first stage
