The Yamaha 4 strokes are proven engines, the verados are still provong themselves. erc makes good products, but they are not known for longevty, yes some do get lucky and they last a long time, but notoriously hey last a bit less then a Yamaha will, but there are always acceptions to this deoending on maintenance and such as well as how the engines are used and also by model.
As far as the supercharger, I'm not sure how it will hold up ovr time, plus super chargers aren't cheap to replace, nd it will go over time so remember hat, it wn't run forever. Displacement has a big importance in engines, a bigger displacement means it has more balls typically to ge tthe boat running, adding a super to increase hp but not displacement trickys the situation but can be noticed on heavier boats, lighter boats will run faster due to the super in the end. Mercs are known for go fast CC's and guys with multiple engines, amaie's are for those who want a reliable long lasting investment. I've fished on both and love both, the Verado is impressive, but I wold not buy one, everyone I know who bout tem sold them already or hates them so far.. I have 6 friends with them. 2 Have had issues since day 1...the one guy bought a Triton CC with triples on i.....it sits on a trailer unused and he runs his other boat with a different make engine instead...Honda's.
Another big issue is who maintains your engines, you need to find a service center you trust and a mechanic you trust and make your regular who knows your boat, having one local is a plus and ths can often influence an engine brand.
As for pursuit with Verado's...haven't seen that unless they were dealer installed and he dealer is a merc dealer and does not want to sell yammie's so they can corner you on service. Typically those are dealers to stay away from, a factory installed engine is perfered.
