I’ve been doing research, and I’m getting one. BUT, They say the stock response is very crappy. Will YYJ Silicone O-rings fit it, or will I have to get bigger replacements?
Buy flowable silicone, solves all your problems
Unfortunately, neither flowable silicone nor silicone o-rings will fit in the Buttermouse Rush. The B-Rush is a yo-yo that uses pads as a response system. It fits standard .555 sized pads - Gen Pads, One Drop Silicone Stickers, etc.