TOM, I'm on hrt and have done some cycles so I can relate. No need for pct. During a cycle nolva and anti-aromatise are a good idea to keep estrogen under control, and potential gyno symptoms at bay.
Once off, and doing maintenance of test 250mg a wk, I would use hcg at a low dose of 250mg twice a week indefinitely. HCG will keeps the boys happy, and prevents complete shut down. Make no mistake, even 250 mg/wk of test will shut you down.
I speak from experience. I have been on a very low dose of test (Androgel) for a few years. I did a 11 week cycle (test prop/winstrol), and 4 weeks after going back on hrt I noticed... well basically limp dick. Upon the recommendation of a good HRT doc, I started daily 250 iu injections of hcg for 15 days. After that, twice a week. Made a HUGE difference. Right now I'm doing a dbol/test prop/deca cycle, and even with deca's notorious rep for limp dick, I am cruising along with high sex drive and solid hard on's. My wife even commented the other day I haven't 'performed' like this in years. I say it is the hcg that is making the difference. My .02 cents.