That is correct. I just recieved a box of synovex - h pellets today. I am planning to make Prop. But I have to find good clear directions because you have to extract the estradiol. I think this involves rinsing at some stage. I'm still working on finding a good method. There is probably one in a sticky in this section. That is where I was heading when I saw your thread.
Good luck

go 2 www.universalkits.com
look up s-type kits
then instructions for s-type kits
G'luck