My unit has a 5.5 watt output, a 12 volt 4 amp 48 watt supply pack on it. It seems rather inconsistent when trying to cut or engrave. I was looking to upgrade to a 10 watt module, possibly with air assist. Does anyone have any tips or tricks for me? I was using paint and lasergrbl, but recently started using Lightburn. Another issue I have found is, when I program a round circle, 2" x 2" round for example, it cuts egg shaped…