So.another question as I have the bike back together after a full rebuild now I have low compression could this be due to squish and my domes ? As I havent actually checked squish as i want to ditch the spacer plate and get my head cut I'm running charity stage IV 20cc domes ( the domes have pitting on them so figured it would also be fixed with cutting )but only have about 80 psi I'm wondering what I need to tell the shop to shave from it for my 4mm