I prefer the remote valves as long as they are not otherwise problematic.

They make it easy to adjust a running engine.

I will not ( nor should not ) attempt to adjust an engine with a carb mounted needle close to the prop, so I've never been hit by a prop while adjusting an engine.

Unfortunately I have tested Missleman's theory...

I have been hit by a prop, when attempting to pick up a running pusher plane ( Bobcat .52 ) which did permanent nerve damage.

The prop did not push my fingers away. It sliced the tips of three fingers on my left hand 1/4" under the nail, following the curve of the finger tip, the middle finger was sliced down to the bone which finally caused the engine to stop.

While it has healed I have no sensation on the tip of the finger, nor the finger tip "pad".

I can attest that the prop WILL do a lot of damage.

This may be different than the "slice and dice" damage caused by the prop tips, but it is both painful and severe.