[Paul Riley]

You should be fine at x128 for MOST situations,but not all.

Dissaray,you are right,any higher than x128 and thats when the problems seem to arise.And in areas notorious for having strong air cover like the bay of Biscay (1942 onwards the air threat becomes very serious) I would suggest going no higher than x32,or you will have no time to pound the 'C' key and you will be bombed before you can even bellow "ALAAAAAAAAAAARM!"
So in a nutshell the safest policy (for me that is) would be -
- general cruising use x128,
- when approaching/and are in areas with strong air cover use x32
- map plotting,observation phase,preparing an attack,overhauling/getting into position,the actual attack,evasion,depth charge attacks,use real time x1

POINT OF INTEREST - I personally have had no problems with collisions or anything like that before,other than almost scraping the bow while entering the sub pen at night once,and have certainly not experienced any adverse situations at x128,only when at higher TC than x32 when being attacked by planes.The watch simply dont spot them and the bombs have already landed on the deck!.