I've found it worth the risk, and the damage.
Like I said, I took 98% damage
in a single turn by putting a unit the ferry hex (where it can be bombarded at the end of the turn by defense in BOTH Messina and Reggio Calabria.
Does a TF 'die' if it gets to 100% damage? Seems like a helluva risk if they do...
Plus you can rotate them out. The same one doesn't have to sit there every turn, but if he puts a fort there, then you could be in trouble. Using two TF's would hamper my future plans. I planned for one TF to sit up there, and the rest would get busy with out invasion schedule. Can't have two TF's busy like that, I need them.
If you're rotating them, how does that not negatively impact your invasion schedule? Aren't you losing their prep when you rotate them out?
If you place TF's like you have on your pic, that doesn't stop movement over the ferry hexes,
A single TF in one of the two ferry hexes will stop supply, but it won't stop movement by units through the other ferry hex either. You'd have to devote two TFs to accomplish that.
and doesn't stop supply from getting to Messina.
It stops supplies via the ferry. You can't isolate the island without blocking it. The defensive perimeter of Messina can be fed from the Reggio Calabria depot (I don't even like to send supplies to the Messina depot because it robs the other islands ability to stockpile - Axis have very little naval supply capability, and it craters when Italy surrenders).
We all have our own way of doing things, and I won't put a TF up there unless I see someone commit their mobile axis units to the fight on Sicily.
I usually have two of them fixing the small ports and maintaining the temp ports as long as needed while the other 4 prep for the next invasion on the mainland to compel an Italian surrender as soon as August arrives.
It's the threat of their arrival that should keep the German from getting carried away in Sicily, so long as the WA player realizes he has that option. If the German puts his head in the noose - pull the trap!
"War is never a technical problem only, and if in pursuing technical solutions you neglect the psychological and the political, then the best technical solutions will be worthless." - Hermann Balck