Shortie...XR or Imco
 

Is there good or bad with either durability or other reasons. Building a new boat, setting engine height for shorties no boxes. As the drives are the last big ticket item( un-paid for as of yet) I'm wonder what the opinions are. I plan on racing with it hopefully. Toughness verse dough rey me, that's the question.

Imco .... 353 Formula / Prochargers and 230 hours .. no issues ....

imco its a better design, I heard guys lost speed with the merc ones. I loved my shortie until someone stole my drive. new boat has KONRAD ACE DRIVE its beefy.

Pricks!