I shot micro-flies back in the day. As others have said, good weight and fairly straight. I did find that they mushroomed fairly easily on hard impacts though. There were other manufacturers as well, Gordon Glassshafts, Fleetwood glass, Condor Log fiberglass, Farbenglas, Glas-lite, Gilmore Glass, etc.
Difficult to say what yours are. Micro-flites, and some other brands, had quite a bit of texture.
Regardless, the limiting factor nowadays is the inserts. Still a fair number of shafts around, but not a lot of inserts.