Booster looks very good. But for the bolts would it not be better to make the hole for the allen key a bit deeper. Because i still manage to round them off and maybe at the bottom make another hole for a smaller alen key if you round the first one So say its a 6m amake an other 4m hole inside ? And maybe you should try make titanium bits other than screws? Sorry if iam not using the right words iam french Good luck