250 is higher than I would have guessed for the hottop B - no tipping or scorching results?

I've been dropping at 200 lately, but haven't really had the coffee age enough for a real test.

The problem with saying 250f on the HT temp is it changes from a cold roaster to a warm roaster. On a warm roaster I have dropped in at 300f on the thermo coupler and the HT read 285, on a cold roaster for a 300f drop in the HT can read 250-260f. This makes it difficult to give an accurate temp to go by.

I have had no problems dropping in at these temps. The TC taking bean mass temp drops to mid 165f before climbing again after 50 secs. The reason I started to do the higher drop ins is for Kona which I couldn't get good results with until doing this.

Yeah, I always start from a cold roaster for that reason. No big deal for the amount I'm roasting, and I figure its easier on the machine, which isn't really constant duty cycle.

Rob, I'm curious, what batch size are you are using? I'm guessing under 200g?

I use 225g and have not tried less then this weight yet. I think my bean mass probe may be a little high off the drum for a 150g batch but want to try it with some gesha since it will give 3 roasts per 1lb.