After looking for a few years I've finally found someone who does exellent quality hot blueing in the north east. He's a bespoke firearms maker & having seen his work I can say it's easily as good as colins at mag. But, he will not do the removing of old bluing or the polishing so I've been polishing my new old hw35 for a week now. It wasn't too bad but there were 2 areas of quite deep pitting (where the barrel band was & on the compression tube) Now got it almost ready for re-bluing & then my bsa .25 merc to do. that'll be a lot easier as it has no pitting just browning & worn blue to remove. Will post a few pics of the results in a week or so when they're finished.