I have been able to find a few threads on Caspian Hi-Cap magazines but nothing that is extremely detailed and consolidated. I have several questions about the Hi-Cap mags.
My questions are primarily focused on .40/10mm mags for Limited/L10 and for .38SuperComp mags for Open.
Which mags work in the Caspian frame? I have seen Caspian mags, EAA mags, and S_I mags mentioned also.
What capacity can be reached with any of the mags? Just like most people, I am interested in the most capacity I can get with the most reliability.
Which basepads give the most capacity and in either caliber and stay within the legal length limits for USPSA?
Which springs and followers work to give reliability and the highest capacity?
Can STI or SV mags work reliably in the Caspian frame and what is required to make them fit? Is it solely frame thinning or do the mags also need to be altered? I know Lim does it to some guns he builds. He is away so he can't answer questions right now.
And finally, I saw a for sale ad for a Caspian Hi-Cap Limited gun from Bob Vogel that listed the gun as having a 21 round mag with it. I believe Rich at Canyon Creek built the gun but I'm not sure on who did the mag.