For ESCs many people go with Littlebees, in side-by-side comparisons they are generally on-par and sometimes ahead of KISS but at 1/4 of the price. I use 20A for my 5" 2204 (2300kv) cobra setup and have 30A for a 6" 2206 (2100kv) quads. They aren't the absolute cheapest and I only know the price...
Hello, first post and I am asking for help already :)
I updated OpenPilot to LibrePilot yesterday and all went well, I had to delete previous software in rescue mode first but the setup process is fine. I can fly the quad and it is stable - until the battery is removed, then all the settings...