Originally Posted by
colorado_rob
Chris sure is a helpful guy. When I ordered my OHM, I was torn between that and the Circuit, so I talked to Chris and he suggested I simply buy both, and return one in the same box that held both, and he pre-paid a shipping label. so I tried both at home loaded identically, opted for the lighter OHM. Great service at ULA! My wife subsequently went with the OHM as well.
Just for fun, plenty of closed cell foam laying around, I'll try the thin-stuff replacement myself, though I cannot see how it would improve anything, but I'm wrong about 50% of the time.