Warzouz, love these designs! they've saved two different career saves from the money death spiral. I've noticed in 1.2 that I have to enable autostrut and rigid attachment, and I usually have to go 1 or 2 sizes bigger than their weight allowance. Not a big problem if you are recovering them almost everytime! Unless I am really tight on money I usually turn the boosters around and de-orbit right after the insertion burn, semi-SpaceX style.