All mine is on a EF Yak. I did do some testing in the backyard on a 24 x 8 BME prop. I have been busy with working on my house so my Yak is collecting dust because of those reasons. I am running mine on a Karl from Canada header along with a CF pipe. I do not have 1/2 gallon on mine at this point I have flew it 2 times so that is my input along with these below links:

http://www.youtube.com/watch?v=7hgcGJAcXQw



http://www.youtube.com/watch?v=adU0mC5p4iM



Set up is BME 58

11” Carl from Canada 1” header

ES Carbon Fiber Pipe

EF Yak 54