I never really gave the blend it's due diligence b/c of how well the straight 7s shot. But here's what I got.
Roberts final strut .655 w/3.5" =211 in 10"
IC .665 w/3.5" =175 in 10"
A buddy on here got 254 in 10" with a Roberts final strut .655 but it was with a 3" blend.
Cut N Run on here got a very even 338 in 10" with again a 3" shell running straight 7s, so you may want to message him and see if he tried the blends. Seems to me the SBE 2s like a 3" shell better than 3.5" .....