You don't need to trim any kite to unhook if you have it properly trimmed in the first place
but the answer i suppose you're looking for, is that you really want a c kite
I definitely dont agree whatsoever....
IMO, most Bow or SLE kites need more depower trim before unhooking, whereas most C kites excel in having a more correct trim both hooked and unhooked
Or is it just me ?
Noone wants to ride with the bar fully pulled towards the release/CL, normally (having both arms bent, and/or need to lean back a lot), so that is another reason why ALL kites will need some depower trim, when you unhook.
But with C kites, the depower range is way shorter, and you wont "kill" the kite as easily when powered a bit up, like you can with SLE kites (IMO)