I’m using a Gusset Squire I think, in push up mode. It’s okay but it doesn’t run parallel with the chain so has been twisted. This gives the effect of what feels like ghost shifting as the chain was de-railing off the tensioner wheel.
A trail side repair/bodge this evening has made it much better by wedging in a cut piece of thick plastic between the arm and the spring tensioner, which has brought the arm virtually parallel with the chain, if you get my description?
I’m wondering if the mech hanger is bent? Is there a method that can be used with bits of string or something where I could check the hanger alignment? Steel frame btw, so I have a pair of stilsons 😉