No worrys friend, and as for the Ross pistons they are probably in the top 5 in design features and quality & service (just my opinion as an engine builder etc). It would be hard to go wrong with any of these top brands though : JE-SRP, CP, Diamond, Mahle, Wiseco, Arias. They all have the new slipper or X designs with reduced skirts for high strength and radically reduced weights. Â