As you likely are aware bzm are quality ..
I have seen them perform in the marine scene and they are a strong engine,,although in comparison to a strong Zenoah or TKing the BZM will drop some in topend speed..They could do with a little work internally.
Just from my own opinion..
Your boat is great..
Thank You for your opinions.I was told by few people that owned QD zenoah TK and bzm and they said bzm are stronger.i had modded zenoah 29.5 so i think when i have boat in water tuned i can compare .Hope can test soon