Originally Posted by gennaro
Be good to hear about the Mariner and how you find the gear shift on the tiller.
Just came back from maiden voyage and couple hours running in, including a couple of brief full throttle runs.
The engine and boat seemed the perfect combination. No issues with the gear shift on throttle, there is a noticeable resistance moving into gear from neutral and I don't think shifting through neutral will be done accidentally unless you are particularly aggressive with the throttle and forget which way to turn it.
The 9.9 4-stroke planed 2 1/2 up (approx 190kg + 10+ litres fuel + kit) on a relatively calm sea with ease. I think it topped out at just over 12 kts and as suggested, remained on the plane possibly right down to 1/2 throttle.
Not sure how longer length boat and extra torque of larger cc 4-stroke would make over a 3.25m 9.8 2-stroke. Personally i feel that the extra weight of the 4-stroke is probably insignificant compared to the 250-300kg overall weight of craft, engine, kit and persons.