Sharks(and MD1s) just weren't the same for me. I tried both as stable compliments to the QMS, and they work for a week or so but I always felt really limited by what they could do. I really don't like carrying discs that only work for 1-2 shots(outside of say a Firebird). That's why I throw Millennium. The QMS, QJLS, and QOLF are the most workable trio in disc golf. The AMF can hold hyzers, anny, flips, anything I can think of. Always preferred utility out of a disc. I also dislike the feel of the Shark wing in my hand. Never releases like I expect, but that is probably just mental.
But yeah for those that just want a stable compliment to the MS, the shark is a good place to look.
Omega - QMS - MD2 - QJLS - OLF/S - DD - Scorpius
Tell me and I'll forget; Show me and I may remember; Involve me and I'll understand