My T1d is picky also but I can always get it to work w/ a few triesCan you send me some of these recordings via WeShare or something?
As for CC failing this has so far always been an issue of the controller. There are good controllers that generate 100% sick output even in the corners, and then there are controllers that can't. TelloFPV is very generous and considers 65% stick output to be enough for csc motor start. Check your controller output using a gamepad test app. If your controller can't do that reliably you have to use automatic take off or get a better controller