If removable is important, then add a stainless locking caribiner/shackle.
I don't even want to think
about hauling a shackle across on a tack, much less
the clew flailing-about with a shackle on it.
No! Absolutely not!
For use of two jib sheets the buntline is far superior to the bowline, just add a few feet to the lines as you'll need to cut off a buntline.
That could get kinda spendy, even with plain ol' Sta Set, doing that once-per-time out, or especially if you're racing and have a changeable head sail system
In the 'old days' prior to furling genoas a sailor would forever be switching headsails: Genoa No1, 2 and 3, Jib, Storm Jib. So you had to whip the sheets off fast, and on fast!
The "old days" are still with us, tho it's mostly only racers that do that, these days
What we have currently is a Tuff Luff system. What I'd like to have on Abracadabra, some day, is the Harken Mk. IV system, which allows one to easily switch between furler and racing foil systems