This is an older thread, but just wanted to thank everyone for their responses. I've been sitting on it because I got a quote for a CLA saying that all the prices were double because it's a 3.5f type 1, and apparently they're a lot more complicated to work on. I got a little skiddish after that, but I'm finally going to bite the bullet and send it off. I got to compare it to a 3.5E with Planar and, basically, no comparison. There's definitely something off.
So, off it goes, wallet be damned! Maybe I'll offload either the E or F once I have everything straightened out.