Well, my PUP is only 37 and I never really soloed on it, but I do solo on WHM from time to time and I would offer the following observations:
In case you ever get into a party, you'll definitely want a pair of Acc rings. However, for solo you really don't need a lot of acc overall. Your gear functions as a whole made of parts, not just on the parts and you have to factor in your other pieces and your food. If you aren't really wearing any Acc anywhere else, you should get the rings but if you have Life Belt and good acc otherwise, it can't hurt to get Assailant's Ring and a STR ring or something similar. Since melee solo on PUP would imply that you won't be fighting much over toughs, acc shouldn't be a major issue.
Although not being 60, I don't know what it's like to solo with a C ranked weapon skill. If you notice yourself missing a lot, try one ring, then another.
Mikhalia: and FWIW, my posts are 95% helpful, informative, or funny.
Mikhalia: only 5% or less of my posts are utter crap.
Tyapex: 393 posts of utter crap...
Mikhalia: Sounds about right.