Yes iknow,ihave .28 sporster and it works great 20%castor and 10%nitro.
Saito was used when ibought it,very low runing time.
It works idle to 3/4 throtle but never full throtle,every flight needles must adjust again ,too many deadstik,too many time it was kick prop loose,scale plastic spinner pieces or burbing on very rich full throtle.
Piece of ****.