I am getting a GX1 in the mail, but sans the VF2. I have used the Oly VF2 (the high res one) and the Oly VF3 (the lower res one). The VF2 is great for MF. The VF3 is fine for framing, but poor for MF (and also poor for judging exposure). If anyone has had experience with these, where does the P-VF2 fit in compared to the Olys? Is it as good as the Oly VF2? More like the VF3? Or in between? Also -- does the VF2 lock onto the body at all? Thanks for any help.