I never thought I would ever hear anyone say that.
One thing to consider is your antipated vehicle top speed. The shaft critical RPM is a function of shaft material, diameter, wall thickness, vehicle speed, rear axle ratio, tire diameter, and maybe a few more variables.
The shaft was designed to handle some predetermined top speed, typically 106mph or 120mph. So one way to control the shaft rpm is to slow the F down.
You might ask yourself if you ever intend on going that fast in this thing, and if not, that might be a consideration that moves you back to a one piece if you are on the fence.
(I always do a one piece if I there is any way to get away with it).
K
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