SH3 Commander Thermal Layers

[GoldenRivet]

I have been noticing a lot of players talking about the difficulty of evading a DD down even at 200 meters depth.

Hoewever i have found that sometimes i can evade them at 100 meters while other times i have to go much much deeper.

Also i have noticed that even though the DDs are still making attack runs... sonar pings are no longer audible once i go deep. Sometimes i will hear the ping as deep as 200 meters, other times i cant hear them after passing 90 meters or so.

is this SH3 commander simulating thermal layers?

I almost always have no problem evading destroyers by diving down to 150 meters and creeping away at silent speed... their depth charges never get close at all. in 9 patrols i have only had one depth charge run get close enough to shake the boat. This particular career started in 9/39 it is now 2/42

using GWX and SH3C