Inspired by the performance of the betafpv 85pro2 and my search for a lighter hd recording whoop (startet originally with the Mob7HD) i found the cinecan frame which was lighter than the 85mm betafpv frame (7.7g instead of nearly 11g) and it was also capable of mounting the 1102 three-hole motors from happymodel. I swapped al the mob7hd parts to the 85mm frame and got a much better flying cine whoop (~52g without battery).

After some troubles with my turtle v2 i just installed a caddx beetlev1 aio cam for testing... what i got then was a really zippy, super efficient whoop, lighter then the 85pro2 from betafpv with the ability to fly on 2s 300mah and bt2.0 connector for nearly 4 minutes. ( Of course i added jesc 48khz with bidirectional dshot ,this makes every small build even better imo).

In terms of agility it feels like a smaller 65mm whoop ( turns on point, feeling of nearly no momentum) , perfect for narrow outdoor tracks like gardens or abandoned buildings. Its not as fast as the beta 85pro2 but i like it more:)

To save more weight you could use the eachine nano fc which weights only 3.6g (-1.0g) an pcb antenna (-0.5g) (i recommend the one from TBS) and the runcam nano3 with the mob6 canopy (-1.0g), so that the lightes possible build would be around 35g for an 2s 85mm whoop!