I would (will) go with the flat plate. All of the pan bolts are involved. Four Lord style mounts involved.

Compact and uses the engine block for added stiffness. I will include the nose gear in my mount to reduce fire wall complexity. Possible oil control benefit.

 

Lynn E. Hanover 

Lynn,

Well reasoned, but it you use a slightly changed version of the Shertz mount like Jerry Hey is now making the mount uses the bellhousing bolts and fits between the Psru plate and the engine. Using two large lord mounts and that system I believe it's a toss up. I really don't think you can really plan for this though unless you always fly high and carry a 'chute!

Bill Jepson