Ported MS 440 Kit Saw 52mm Big Bore - Shop talk, first runs and break in cuts

First Holzfforma kit I've built. MS 440 parts kit with 52mm Big bore cylinder. Ex 98, In 78, Trans 115, squish 0.022 in, piston windows opened and piston lightened from 77.7g to 76.4g just from opening windows, cleaning flash and rounding the skirt corners.