I have a question for you torpedo shoot'n gurus:
I have been playing SH4 for awhile now and I've run into an interesting behavior. I just started using the sub's TDC. I was using Gutted's Solution Solver and Sub Buddy and have had great results. All torpedo's hit where I calculated. There is the occasional ship that decides it doesn't want to sink on that particular day

. Using the sub's TDC I keep hitting aft of where I calculate. Most of time, I get mortal hits.
As a general rule, I use the nav map to get the targets course then use the tools mentioned to get the rest of the data.
I'm wondering what I need to tweak to have better control.
Torpedo Mods:
Webster's Improved US Torpedo v2
Perfect Torpedos v1
Thanks!!!