While I'm still getting fairly good results in PHD2, every time I run the guiding assistant it tells me there is a backlash reading between 11 and up to 20 seconds. (11000 to 20000 ms) This backlash seems to be consistent throughout the evening so I don't think it is temperature related. I feel as though I am able to balance my rig correctly and, have my cables managed so there are no snags or anything like that.
My question is how should I address the problem, Should I do the worm adjustment as shown on astrobaby. I've seen a lot of people post about doing it to correct the backlash in declination. I bought the mount new and have had it less than a year and was wary about opening it up. However, if this is something I would have to do eventually I might as well learn to do it as I plan to use the mount till it dies. Ill include the debug and guide logs from a couple of nights if that'll help. Any suggestions would be welcome. PHD2_DebugLog_2019-10-22_170356.txt
If I were you, I would take the guide assistant with a big grain of salt. In my case, the GA has reported big polar aligment errors when I know that SharpCap shows "excellent" aligment with less than 10 arc-sec on both RA and DEC. I trust SC because I can see the trace of Polaris perfectly concentric with the circles on the screen as I rotate the RA axis.
How is your DEC guiding? If it is still good you know PHD GA is "misinformed".
I have also seen the GA suggest MIMOs that when applied make guiding worst. Since I now have a good understanding how capable my mount is under different seeing conditions, I have stopped acepting Mimos from PHD2. I change them myself by observing my mount behaviour.
Do you feel any play on the DEC axis if you softly shake the saddle? Check that the round thing where the CW bar comes out did not get a little loose with use and time. That piece is the retaining nut for the DEC thrust bearing that is just behind it. If loose, it my allow the bearing to drop a bit out of its housing by gravity and it may be the cause of your problem.
When troubleshooting, I like to clear the low hanging fruits firt. And having seen how the worm is installed, if it once worked fine, I doubt it is the problem now.
Keep posting updates if you can. I would be interested to see what the problem is.