It would be nice for nubies like me to list the advantages and disadvantages of buying the x4 or waiting for the sp140. One question is which would be better for motor off soaring . It looks like half the prop on the sp140 would be blanketed by the pilot/ harness if it stays in the upright position so that should balance out having 4 small stationery props ?. Please add to the list .
1 ) x4 is cheaper by maybe 1500$ after you buy batteries for the x4
2) sp140 is prebuilt
3 ) sp140 has longer duration . Not sure of the estimated math on this trade offs of batteries etc
4) portability and weight ?
5) ability to modify ?