I couldn’t tell you the specifics, but for starters, just the added weight of the Rokstock will make it more shootable.
My 20 in superlite with a bare muzzle and reg Rokstock feels just about right as a shootable mid range gun. I will be chopping it to 16 and adding a suppressor so the weight should be close to the same. I’ll also be ordering a Rokstock lite to try, but I’m very aware that it might just end up too light for field positions in hunting conditions. I think people are going to be surprised by this. I’m hopeful it will shoot 90% as well and I can cut another 8 oz out of my pack but I’m fully prepared to put it on the classifieds or a youth gun if it doesn’t.
I learned this with shotguns, was chasing the lightest set up possible but it took my wing shooting all to hell, went back to a 6.5lb gun from a 5lb gun and all was right again.
My rifles in Rokstock are generally 8.4-8.7 lbs, the lite just cuts half a pound so they should all be fine. I am going to do one 223 with a shorty factory barrel which I expect to be more like 7.5 which is about the bare minimum to be a decent shooter.
But you are right, the lite will almost certainly shoot a little worse than the regular. I am hoping its close enough that it still works well for small calibers. But like you said resale on them should be great so I am not sweating it.