Thank you for the information, that does help. I've got a .150 x .100 front that I just installed which was supposed to be paired up with a Dawson Carry rear but there wasn't enough clearance for the top of the slide with that sight on my Compact. The front is already installed so I won't be able to return it so I was hopeful one of those two CZC rears would work with that height. If not, I'll save those sights for a future build and order what I need for the Compact.
Did you like that setup with the HTAC and the fiber optic up front?