So, I am looking to buy a SHENHUI laser and the CO2 laser tubes are not all that expensive. I can pay $200 more and go from 80-100W. There are options to go all the way to 130 W. While I have never used anything with more than 60W, I would assume higher power would reduce the heat affected zone and charring, but is that right? Is there a limit to how much power I should get? Is there a tradeoff that I dont know about?

Anhyow, thank you in advance!
Adam