My Edison Triumph model D is my only cylinder phonograph and I have lavished tons of repair and upgrades on it since 2011. It's been shipped around the country (by me) several times for the first steps, but the last time I wouldn't even commit it to the mail and so drove it up to George Vollema in northern Michigan for his final touches; when he was done I then drove up there to retrieve it. It was one of those times when you realize "how far gone" you are as a daffy collector/hobbyist: George helped me sit the Triumph on a seat of its own (next to me, the driver) and secure it with its own seat belt! I was half-tempted--when I soon visited a fast-food drive-thru--to ask the Triumph what it wanted.
Sooooo--the machine has had every last possible thing adjusted; everything is straight; tensions are right; all wobbly gears replaced; new springs in new packings of lubrication. In terms of upper works: new bushing, new belt, etc.
OK, on to the question: for the most part it plays wonderfully well and evenly. But once in awhile it flutters--as if something is tugging somewhere. I usually run the springs down a bit, jiggle the mandrel, run it as fast as it will go--and then wind it up again; then she's usually fine for a day or two before it might happen again.
This is for the people who really know their Triumphs and play them a lot. I don't think I need to chase after any more repairs. I just want anecdotes from people as to what it is that causes that occasional resistance somewhere--and what your tricks are to get the most consistent performance possible.
Thanks -- and Happy Tuesday!
Ralph