I have an 85 Combat. An 85B (or an 85) is exactly the same gun as the 75B (or 75), except that it has ambidextrous controls (slide release and safety.) The 85 Combat is similar, but doesn't have the firing pin block, has a over-travel adjustment on the trigger, extended mag release, adjusted mag brake that lets mags drop free, and adjustable sights.
Try getting a set of factory soft rubber grips. They look exactly like the hard plastic grips, but fit many hands better than the Hogue grips. (I found the Hogues forced my hands upwards into the trigger guard uncomfortably.)
You can take the grips off, pull out the pin at the top of the magazine brake, and bend the brake a bit so that it rubs more against the mainspring (hammer spring), and reinstall the pin. You don't have to bend it much, and it should allow the mags to drop free. You can also order a flat mag brake plate from CZ-USA.
Consider joining the CZ Forum.
http://www.czfirearms.us