I just finished roasting my first batch of these using my Corretto. Very pronounced first crack at 9min 45 sec and then a loud second crack at approx. 15min 30 seconds. I removed the beans immediately at that stage and there was some smoke in the 30 seconds it took me to eject them and get them over the fan. I was able to try out my trusty new CS members card and it suggested CS 10. All-in-all Im quite happy with how things went. It was lucky roast number 7 for me. Cant wait to try them. At this stage Im prepared to wait until Sunday morning. No longer... *:).
PS. Not sure why our roasts were so different? I had to resort to using my bead temperature probe (couldnt find the stick type one) which sits at the opposite end of where my heat gun is positioned over the bread basket. Im sure it reads much too low, as it suggested 185 before I raised the gun after FC. However, even with a bit of the distance, etc. factored in I would be surprised if the temp reached 228.