Perhaps Mr Buzzy if
(A) you knew the the problem I outlined existed especially in wet areas where dirt strips are involved and
(B) you understood C210 retract systems well enough to know what I'm saying is true then you would support the method outlined and save a few 210's from the scrap yard.
Perhaps you've never flown a C210 but that's no reason to call BS just because you don't understand them.
The procedure only has one extra step to the procedures normally carried out when there is a gear problem. If it works you get to save heaps of hassles and $$$$$$$$ and increased insurance premiums for all 210 owners.
If it doesn't the result is the same as it would be if you didn't try.
I didn't notice you comment on choosing bitumen over grass.
The round gear leg C210's have been around for 44 years. It would be surprising if nothing new had been learned about them since the Operating Handbook was written.
We know that under certain circumstances a C210 will flick roll. That's not in the Operating Handbook either even though there are bodies scattered around the world to prove it.