RE: TRCC - I was asked to sign up to do HIs for the TRCC many years ago and I quickly turned that gig down.
I've also heard (via e-mail from someone today) that the TRCC is supporting having the 'rural area inspection program' done by ICC-certified inspectors and not TREC-licensed inspectors ... unless they also happen to have their ICC-certs.
If that "is" solid it may be wise to work on the ICC-certs if you are in that market in Texas.