Guys, As far as i can remember during my last rebuild, i purchased a set of pistons which were domed on top. I skimmed em flat already, probably from a 5efe. Jut aftermarket 74.5mm ones. Queestion is, after shaving em flat, whats the compression now? Will the pistons be reliable for .9bar? I was thinking that if the pistons were domed shape, will the top material be thinner than the top of a stock 4e piston after skimming? Or was the dome made just 'thicker' and not 'higher' than a stock 4e dished piston?