my problem

Can you thumb grind with a stacked 888???

Yes. If you can’t then you probably have big thumbs.

Yeah… the stacks to get in the way if you have bigger hands… I miss alot of thumb grinds with my G5 because I hit the stack alot… but its possible, I’ve done it, I can do it 8/10 times on my GM2 with its huge ring… Im sure theres more than enough room to do it with an 888. practice

You can try throwing the yo-yo at an angle so it will be a little easier for the yo-yo to stay on.

ive got pretty good hand and i can hit it more often than not but for fun i usually use like my pinky or index, fits rather nicely