I just bought several 8-rd. KimPro Tac-Mags (SS), from the Armory in VA Beach, VA. They are for Kimber 1911s, and mine is a CDP Pro, with standard grip and 4" barrel. Upon receipt, I loaded one with eight (

rounds, and tried to install it in the magazine well. It would not fully insert, making some sort of contact just before latching.
I removed one (1) round and inserted it again with seven rounds...voila! It loaded without a problem. I studied that eighth round and tried to reinsert it several times, thinking maybe I hadn't seated it fully in the magazine. NOPE! It would NOT take eight rounds...no way, Jose!
SO...even though the magazine will hold a full eight rounds, it won't load in MY Kimber with that number. I've dropped my expectation and operation to seven rounds of .45 ACP, and am proceeding merrily on my way

They are beautiful mags, and come with an assortment of bottom pads that you can install yourself. I highly recommend them to Kimber owners.