Both buzz like if anything no bead and faster.
Core is glidey and stable can hold a ton of lines. Very similar to the buzzz except a little turn.
Fuse. Glide city stable/understable mid. Very easy to hyzer flip for long lines. Very good anny disc. But will hold a nice straight line like a buzzz, but requires better form to perform this shot over the buzzz.
Both are great discs I would say the fuse is a must try.