Hi! I need little help to decide what i gonna buy. If you think that you can get same price 6kw co2(brand1) and fiber(brand2). Worlds top manufactures both. I need cutting quality be very good at thick materials 20-30mm. I heard that fiber edge quality sucks at over 20mm? Does anyone have pictures about thick material edge quality(fiber). Let me know if you think that fiber is overrated or best you can get. sorry about bad english