I've been on Best since the 08's came out. Haven't had issues with bladders, except on one kite. They just sent me a whole new kite when that issue arose.
We just fixed a kite out there today, actually.
(Royal)
and a Best kite blew up so loud (while being pumped up) it sounded like a frickin cannon went off... LMAO.
Seems like lots of good choices out there these days.
Those guys were on SS, Flexi, North who switched, since you seem so curious.