Well as far as the springs, I am using the 15 lbs. spring with no FTF , and very consistent indent in the case.
Besides that, the more I shoot it, the more I like it, specially how easy it is to operate the bolt, just like butter.
Now to be honest ( MB may not like this ) but if you open the bolt slow and easy, the cases will drop right on the loading tray, you have to work the bolt all the way back to hit the ejector to get a 100% extraction. In all other RF actions that I have my hands on, both the extractor, and what I call the keeper, they have a hook on the end, more pronounced on the extractor than the keeper, in the Vudoo, the extractor has a nice hook, but the keeper has a flat side, which will allow the case to fall off if the bolt is not pulled fast enough to hit the ejector in the loading tray.
Now talking about the loading tray, I have to say, that I have never own a gun that you can drop a round on the tray, and it will guide it straight in without any missalignment. The design and location of the loading tray in the V22S is perfect, you can drop that round on it, and the bolt will push it in perfectly lined up.
I really love it.
Evelio.