I find it very easy to let my .243, 6.5 Creedmoor and .223 to free recoil with just my finger on the trigger. But my 300 Weatherby 7mm Rem mag and 30-06 are admittedly hard to get used to. I still can do it, but they are definitely a different animal. I let them go free, but still have to stop them with my shoulder.
It definitely shows that knowing your rifles and their actions in the dynamic stage of firing. I shoot 225s in my 300 Weatherby, 208s in the '06 and 162s in the 7 mag, and all three will cut your eye if you don't know how they recoil. They fit me well, and I can shoot them in free recoil, but that doesn't mean my buddy should try it with them, until he sees how they recoil...
I have never had a Weatherby tattoo, Ever.Thank god.
My normal eye relief is such that I want a faint shadow in the scope ID. Not only does this definitely give me enough eye relief but ALWAYS centers my eye with the dead center of the lenses, thus greatly reducing parallax error if any is there.