My J-Tech 7w cuts 1/8" Baltic Birch with ease!
Really lol It takes forever, I have to take 10 passes at 250mm to cut through 
That’s discouraging! How’s your focus? At that speed and 60% power, I could cut it in 2 passes. Too much charring though. I’ll work on some speeds and power settings today. I just got my new one yesterday.
Well I’m cutting at 100% power and 250mm a minute and I think I’m focused
12IPM? My machine only reads mm, and what watt is your laser?
HD lens? What’s special about it?
From JTech’s website. https://jtechphotonics.com/?product=high-resolution-ar-coated-lens
Hmm 
so it’s the same as a G2 lens from what I’m reading