Fugazi's repower

Nice choose engine. They have been extremly reliable in the short time that they have been out. Did you buy it because you had a Johnson before and liked it(even though this is a suzuki) or just liked the engine. Is the top end worse. My friend's dad repowered his 21' Wellcraft CC with a 200 honda over a 185 rude and he lost 4.8 knots Top end wise. Just curious to see if this happens on all 4-stroke's