A number of people have recommended mid-cycle HCG protocols, but my HRT doc just keeps my test doses relatively light (like 250-450 mg/week for 8-10 weeks) and I don't get shut down hard. Ten days after my last shot, he has me do 1,000 units of HCG for 10 days in a row and I start right back up.
And yeah, that does sound high for HRT, but I love my doc!