Interesting reading everyone’s comments.
I’ve got both professional and PH versions of the R8. I like both versions equally. I run barrels in 22LR, 223, 308, 30/06, 300 WM and 9.3x62 in my professional rifles. In the PH I run 375H&H, 416RM and 500J. I really appreciate the extra weight in the PH. I put 16 500J rounds through my 500J on Friday. 12 sitting on a bench ((I don’t use a lead sled) and 4 shots standing without too much discomfort. I’ve also got a Sako 85 in 500j. It’s significantly lighter and I know from experience that 10 rounds through that baby in a session is about my limit.
But, it’s all down to personal preferences as to what to get. Best advice for anyone looking would be to at least handle both models before buying. But that’s not always an option. It certainly wasn’t for me.