Thanks for the advice. I haven't know what to use for time and temp, so I have been reading this thread and watching videos, and the temp advice is all over the map. One guy had his so hot it would sizzle and a cloud would come out after 3 seconds. At the other extreme, the Pure Pressure press people recommend 210-220 and discuss people who use much less.
300 worked well, so I lowered it 10% to 270 and that worked, so I lowered it another 10% to 240 and that worked too. (The straightener goes down to 170.)
So OK, next trial I'll drop it another 10% to 210.
** I assume that with lower temp, i can and will want to press for longer? How many seconds would you recommend?
One more thing: now I understand the people use micro bags. My beautiful rosin is full of flakes of bud. Actually, I don't really mind that--it's natural
-- but it would be fun to press some really clean rosin.
In any case, I'm really happy how this has turned out.