In 08 I ran the 75 Yammie 4 stoke, and I can’t say enough good things about the motor. Hole shot was great and performance was top of the line. At the time I leaned toward Yammie because they had the most user friendly tiller handle on the market and you didn’t have to pay an upgrade fee for it. I thought VTS would be the ticket, and for me it was almost worthless. I fish the river a majority of the time and when you are running up stream in current if you idle down to a crawling speed, you have no power to compensate for the changing current depending on where you were located on the seam, for us river guys there is just not a substitute for our kickers, so I ended up buying a kicker. The only thing I was disappointed in the Yammie was the Friction Control on the steering as I always seem to be messing with it, for as good as a product as Yammie has they need to spend some time fixing that issue because it never really works without adjusting it every other time I went out.
I put an EFI 4 stroke Merc on my winter boat, only a 30 HP but after running the newer EFI Mercs, tiller guys might want to spend some time test driving them. If I ran a tiller I would not overlook Merc and the friction control feature actually works. Kind of going out on a limb but I think Merc has a comparable product if not even a slight edge to Yammie. Most importantly is do you have a dealer close by that will service whatever motor you buy? You will be happy with either choice, and if you have an extended warranty option at no charge along with some rebates, that can make a tough choice alot easier.