"Only problem is if i fly outside in stabilize mode and make a lot of corrections and especially if drive fast, copter suddenly take a some direction to fly and i have to take full back, right, left, front or something to take that bird back close to…"

"This is what I did: Go to config screen and enter the new Rate values. Switch to CLI mode on the Oilpan. Hit Write parameters on the Config screen. Switch back to Mavlink mode on the Oilpan.    Peter"

"  Put the APM switch in CLI mode to be able to write the rate parameters. This will be fixed in 2.0.50."

"Apparently this will be fixed in 2.0.50"

"ok, but how did you solve the RATE_  params problem?  I would like to write PID params directly from APM Configurator, but there are still something wrong and I got messages: "Set RATE_RLL_P failed".  The same at almost all…"

"Hello Teemu,   The PDB which is made for the quads will work with the 30 AMP ESC's the tracks are very thin and are about 5-10 mm wide in different places around the board. You lay a small amount of solder over the tracks to thicken…"