that's a hefty frame, indeed! I have one here somewhere, closet or basement.I have a Rossignol F200 which feels more flexy than my old bancroft wood frame. It's just fantastical off the ground. It's probably close to an RA of 30. I think it might be the most amazing feeling frame for groundstrokes ever. The only problem with it is it's pretty heavy so it's a bit too much for me on serve. I think though without the heft that frame wouldn't be the beast it is. I'm sure there's a different cutoff for everyone, but if you're only trying modern frames you might be totally in the dark like I was before I happened on a garage sale PK Copper Ace.