It only took a few rounds with it for me to come to the same conclusion. No driver in my bag for a little while.
I did this (no driver in my bag) for a full golf season a couple of years ago and my scoring consistency was much better and my handicap dropped. I used a Toue Edge Exotics XCG-5, 11.5* three wood with a Graphite Desigh tour AD-40 shaft which worked great in that club. I have tried the mini in 12*, but probably need to try the 14* and also tried the 2-Deep and it was no comparison, the 2-Deep was much better for me. Don't get me wrong the mini wasn't bad, the 2-Deep was that much better for me. I think the stock shaft on the 2-Deep is a much better shaft, at least for me. It might be nice if I could try either in a regular flex also. Good luck with the mini driver.