I am not sure how many thrust that you able to get from GWS EDF75 with other motors?
But, I like to tell you how GWS EDF75 recently had tested with proto type brushless outrunner motor to get such result:
EDF75 4 blades: 1728g at 5 cells 81A ( 1498W ) 3260KV
EDF75 4 blades: 1180g at 4 cells 50.2A ( 743W ) KV=?
Any one here may be even already got better test datas?
Hope this increasing of speed and thrust will bring GWS EDF75 powered models up grade their performance a lot!
However, need to be careful not to bent the wings!