I need help doing a modification and the modification is how do you put a hubstack on a DV888.
Put the bearings in the actually hubstack part. Put that on the yoyo. Use a needle or a toothpick (or 2) to put the orings on.
EDIT: Nevermind. I don’t think you can without really modding it.
Oh man I really wanted to put a hubstack on my DV888. :-[ :-\ :’( 
It is not recommended to put hubstacks on the Dv888.
Thats another “extreme” mod, as I call it. They do sell Synergy caps for YoYoFactory yoyos. Take off stacks (if you have them) and put then in. It’s not like anything of YoYoJam’s. I have some. It goes right along the sides of the inner-rim. Like Z-Stacks. Bought them at MA States for like $4.
I wish there was a YYG!
No, they are for YoYoJam yoyos.
He said in it that he bought some that are for YoyoFactory that are not like YoyoJams, so he obviously knows that there are YoyoJam ones also.
I think those are T-Stacks.