would be a broader denominator.
D/E is fine, well known but hydraulic propellor-drives are an alternative solution.
Someone, someday will have to shake up this (our) sleepy and ultra-conservative industry!
One is certain: 2 big diesels to drive propellers only during an infinite percentage of the lifetime of any boat is madness, old fashioned and will be overruled shortly!
Please prove me wrong. That way the (r)evolution will take place.