Hi benjoe
I have two these Hobbyking F1 outboards.
Firstly no spare flex cable with these and run a silicon tube from the centre outlet to oil the flex shaft.
Reverse ONLY use 25% on reverse flex shafts DO NOT LIKE heaps of it!!!
I reprogrammed my 60A car with reverse to 25%, (good for removing seaweed).
Servo I used a 9.45KG thrust which strong and gives very good steering.
The motor is 3000kv on 3S 2650mah very fast on a 24" boat (straight line mine sits on the prop).
I tested on 4S, TOTALLY INSANE (the motor stayed in one piece, so, I back tracked to 3S to save the motor).
Upgrade motor 2836-3700kv power 700watts ESC 35A 3-4S battery.
All the bits for Hobbyking!!
They have a CNC Aluminium Outboard (MERCURY LOOK A LIKE) it a bit smaller with a smaller motor.
Maybe OK for the 12" boats.