I find you have to reconverge your CRT projector about once a season after you’ve got it properly setup.
Tonight we watched the 2nd Charlies Angels (to let it warm up properly) and then I ran through a full mechanical setup (and convergence). Picture is much better, and it only took me 15mins or so.
Amazing how sharp I can get red, green is ‘ok’ and blue.. well, you can never really get blue sharp. One day I’ll have to break down and do the astig & flare — it is supposed to really help.