light micro or heavy toothpick... this quad has a long history. the diatone r239 was rebuilt to 249+ after hard crash (fc was changed to matek f411, vtx was changed to AKk .
Few weeks later  motors was changed to amaxinno 1106 4300kv for 4s rippin. it was pretty nice quad.
This build has one problem - r249+ does not fit 3" props. So i designed toothpick 3inch frame with replaceble arm. Pod for nano cam, lollipop and backpack vtx also was designed and printed from TPU.
Quad has excelent performance on 2.5 inch 3blade props(emax avan), 3 inch HQ biblades are pretty efficeint but has vibrations on hi throttle.