120V R2 - Firmware 591 vs Beta Versions

I am currently running firmware version 591 on a 120V machine. I am considering upgrading to the latest beta versions, which state increases in power for 120V machines. I am curious if anyone has upgraded from version 591 to the latest beta versions and noticed a performance difference or any changes in their roasting times.

When I compare my roasts to some other roasts on Roast.World, it does appear that my machine is getting slightly less hot at similar settings, which is why I’m considering the upgrade.

Been using f/w 602 without issue on my 120VAC Bullet.

re: comparative temps… dunno if it applies to what you were comparing, but keep in mind that operating ambient is involved e.g. a room with AC vs. no AC.