pouring ....well some say its art..some say there is technique...when i was benching ln2 with v2-v3... cleaning a pot...makes some serious change to a pot....the f1ee was awesome when clean..you can control the temps...but the temp change wasn't fast as i wanted it...it was a thick base...
it just takes practice.
good to know you're getting used to it....we need to get you the right os for benching...