I really hate the TC in SH4.
I had a really successful patrol and was heading back home. I was between midway and pearl so I upped the TC to 1K. I failed to notice one of those micro islands that don't show up on the chart. My bad
But, I would think that the TC would revert back to 1:1 before I slam in to the island at 18 knots!
And don't get me started on the wonderful DC in SH4