It's hard to put your finger on it really, but all I can say it's much slower. I'm at 8.5 months and even though I have coverage in the crown there's no real density. I'll wait till around 18 months till it's fully grown out then re-address it. I had a lot of work done from in filling the hairline, through the bridge and the crown. So I'm guessing I may have to have one last procedure to concentrate on the crown. That's the problem when anyone who goes down the HT route your in to get the desired result, whether that means one procedure or three, four etc.