A friend having pipes bent up for a for and aft OHV Dougie had Technical Tubes make the bends, according to him they do all the pipe bending for Armours, who in the case of custom jobs just act as a broker for Technical Tubes. They did not follow the drawings provided, and the pipes needed reworking to fit. (Perhaps why Armours stuff does not always fit?)
The stuff I have bought from Armours in years past was not very impressive quality-wise, and I stopped buying mail order from them. Last time I was in the south of England, I stopped in to lget a pair of silencers for a Norton Atlas, wanting to check them over first. I am glad I did as the welding on them was poorly blended/polished, perhaps o.k. for a working daily rider, but not a restoration.
When I was looking for an alternative tube bending shop to have pipes bent for the DT/SW Dougies, I tried Overlander in AU. But despite assurances they could work to toleranced drawings provided with no bulging on one particularly tight bend, they casually disregarded requirements once the order was placed (prepaid only.) When I pointed out the items did not meet specifications, the responce was, "that is normal, you have to expect that". Obviously my fault for having too high an expectation of getting what I asked for. It must be something endemic to tube bending, they tell you they can do it or it will be a perfect fit, but they do not really mean it and are flabbergasted if you believed it!