@@chilly7261 oh yes! Since I started speed running my mono, I know how each small change can make a big difference. It is a lot of trial and error, but the process is so much fun 👍
It's a used motor I bought on OSE for sale forum from jim82. It came with the original box, marked TP4070-V2, 5D, 1650KV. It physically measures 105mm long. You tell me. Is it an older model they no longer make?