Someone here in the UK had occasion to send a cylinder head , I can’t remember who , to Fiennes performance , for engineering work . I would be interested to hear of their experiences with this company . PM me please .
Probably best if you talk it out with them and don’t give them a bad reputation until you are sure they deserve it. Chances are good you will reach an understanding… in that case you‘d be sorry. Also they don’t want badmouthing companies here on the site, deserved or not. Innocent until proven guilty you know