After fitting a Cheely E2 grip on my STI frame I discovered another issue. The mag catch that comes with the grip allows my mags to travel up too high and hitting the bottom of the ejector and the slide feed rail. Since the mags were dinging the ejector and the feed rail I was about ready to put the plastic grips back on. An inquiry to Cheely was met with him informing me a locking mag catch is coming soon.
I got the locking mag catches today and installed them and very happy that everything is good again. If you have the same issue, check out Cheely’s store and order one.