On a cycle that short you most likely wont have exprienced much atrophy, so HCG is not hugely important in my opinion. However if you feel the need, you could run hcg for 2-3 weeks, every 6 days or so, 3000IU, then 1500 from then on. Make sure to combine this with clomid or nolva....nolva is best....and run the nolva about 2-3 weeks past cesation of HCG. Anyone with another take on this please feel free to jump in