Hey Kegs, its been awhile.
I was about to purchase an OLY 10mm gun but things just didn't work out. Some have reported their were running well even with the new OLY magazines.
I haven't gotten in to the OLY 10mm chamber details with anyone yet. The MagTech chamber was a little ify, from the reports I read with higher impulse ammo!
I hope so one can shed some good news on your questions soon...