Sorry for any hijacking

but you did say you loved the .357mag and just wanted more rounds. To me if you like the mag's performance then the sig would be the logical choice for higher capacity.
I still don't think the muzzle blast is a factor in that vid, I did a little research on the subject and reviewed the video again. If you look at the position of the camera the gun would be in view if it was close enough for muzzle blast to be a factor.
As for the 10mm, if you really want that monster then I would suggest anything but a glock. Not because glock is a bad gun but because that round is real nasty and has been proven to put a hurtin on the plastic fantastic.