I shot and hunted with the only Shrike that existed until the first shipment from McMillan arrived last month. The prototype went on a .404 and we took it out to shoot an elk cow on a depredation tag. We hunted with it unpainted, and with a bare steel rifle.
The stock has a straight comb, Echols' trademark serpentine cheekpiece, and some cast off. It was about as "American classic" as a stock gets and was, for me, a great fit. I carried the rifle further, and higher, than I'd intended to when I woke up that morning and it never felt like an albatross. It will be my "go to" for a 700 hunting stock.
RL28, I'm guessing that D'Arcy sent you a Legend stock to try because this was the only Shrike in existence until very recently.