I did hhcg drops my first round & rx subq injections my second (I'll also be doing rx for my 3rd, since I have more bottles). I found that on my first & second rounds, I lost the same 'average' weight per day (.75 lbs). The differences I've noticed: Round one, it seems I lost most of the weight but very few inches during P2. P3, everything seemed to have 'sucked in'. Where I lost inches during stabilization. Round two, I was shrinking during the active weight loss phase. I've not really lost any inches (other than 'tightening up') during this P3. I've had a harder time stabilizing this round - but I don't think it has anything to do with the method of hcg/hhcg delivery. I'm fairly certain it is because I ate a giant hunk of bread on day 2 of P3 (naughty, naughty, & dumb) and I've been bouncing up and down ever since. (Only twice bouncing above the +2 LIW.) Like Haveasmile said, if you've got the pellets, and you've been doing well with them, I'd just stick with what you have. (& yes, subsequent rounds get harder & harder - mostly because you're not quite as "shiny & motivated". )