I think most have problems with the system when they have a 'hard to prove" injury.
Something that does not show on a xray or Mri or other concrete tests.
Or if they cannot find a dr that is fully knowledgeable in whatever injury they have?

If you can share some tips on how best to deal with the wc system when you have a chronic or difficult claim?

I know my claim was kind of messed up - because I trusted the system, and I assumed the atty, the drs, etc to knew what was supposed to be done.
I didn't really have clue back then.