i wouldn't bend the clip when it's attached to the knife. the screws are tapped into the G10, not the Ti frame, so I tend to worry about the brittleness of G10...
But lots of ppl in here seem to have bent the clip w/ it attached, so i guess it must not be a big deal. just with 100+ dollar knives, i'm not taking chances if i can help it.
if you have to, maybe stick the whole handle w/ clip attached in a vice? line it up so the vice clamps down on the clip screws, then bend away. maybe this would offer a little more piece of mind.
i dunno what size the torx wrench is, but one of the bits in the "benchmade blue box" worked perfectly.
also, maybe consider taking the clip off and smoothing the rough g10 down under it? i feel like part of the reason why it sticks so bad is because of clip tension, and then part of the reason is because the rough g10 is grabbing your pant. i smoothed the g10 down a little bit and now it deploys quite well, and no more chewed up pants.
take care.