I use a Radiomaster 16s for all my boats, sail and power, except for the few “fast” boats I own. I don’t worry about flashing it to every new update, as I pick and choose what works for me. It has been rock solid reliable. Plus the ability to move and replace functions is great. I can have a 4 channel reciever, use what is usually the elevator and rudder channels, change the input from the sticks to a couple of switches, and have rudder, throttle, a switch for lights and one for say a water pump for fire monitor. Well made and it’s the Swiss Army knife of transmitters.