What was once fun is now frustrating, as jammin pointed out before. I need a thermometer. Have been stopping heat once 1c. gets going after initial cracks and letting it coast a minute. It is really light like tea but great flavor
The thermometer I got on Amazon (Leaton Digital Dual-channel) was $21.99 and the K Type probes were $7.37 each (1.5m coiled cord, 80mm x 3mm probe). So for under $30 (with prime) I think you could make the leap. I'd only get 1 probe as the ET probe I put it isn't as helpful as I'd hoped it would be.
The last roast of Kenyan I did on the HG/BM is nearly gone and has been tasting great - really happy with the results of that kit.