Welcome, DRS56. Honestly, I can't see anything in your mod list that might cause problems. Usually, particularly with stock SH3, the problem is ships that sink too fast - sometimes by themselves!
Only thing you might want to look at: Make sure you have installed MEP 5 correctly. There are several separate mods inside the folder that unpacks. You need to put the ones you want to use into JSGME individually. Similatr to the MFM skin packs. But MEP won't affect sinking times, anyway.
Anybody else encounter anything like this?
