Hi. If you don't already have a mixer fitted, I used the P94 for my Bermpohl it gives complete control over the two outer props with an option to control the speed of the third, a neat and efficient unit, first look at the price you think it is expensive but put together 2 speed controllers and a mixer bought individually it is well within the acceptable price range, plus all the electronics are balanced to one unit, I have 3 of these now in various models and highly recommend them. I have no financial interests in the suppliers, just a satisfied customer of many years, right from the early days of Action with Craig Talbot.
Howard.