This is my way of comparing props. Trying the Gemfan 5030 and 6030 and the HQ Prop 5030, 5045, 6030 and 6045 versions. Things that stood out, the GF vibrated alot more and the HQ 5045 and 6045 had a better stick feel. Do with the info what you want. Looking at efficiency the GF 5030 won the 5" and the HQ 6030 looked better for the 6" props. But minis are about power and the HQs gave smother thrust. Build one and get a "feel" for motors and props yourself. Working on a arduino based tester that will give me spot on numbers in the hundredths and more of a weight range. Prop strike test video coming soon. Thanks for watching and Keep Thinking!