I own several 85s and have never had problems with the Optilocks. Aside from my personal collection of Sako rifles, I have assembled several other 85s for buddies and all with Optilocks. The trick is getting the lowest mounts possible. For scopes with a long main tube, I really like the one piece ring and base.
I used the Leupold mounts once. Took them off within a few minutes and went back to Optilocks. The problem with the Leupold mounts is getting the forward mount centred.
Another option is a NEAR Rail. I have only used NEAR rails on HS and Remington rifles. Although I hear good things about the NEAR Sako rail, I can't get my head around the friction fit aspect.