I just finished my 4th, 5th, and 6th imbuers using this script Paulo. I used version .15.
I actually kept track of resources used this time around. It was a lot of start/stop during yard work this weekend, so obv the menu kept resetting.
I went from 40-118.3 as a human in 11.75 hours. I'm not sure total time, but probably 13 hours.
residue - 15,784
citrine - 17,231
amber - 2,493
ruby - 1,044
ingots - not sure to be honest
Very nice though. No problems all three times.