The NKP had most of their NKP Berks installed with quick ringing automatic bells. The default G-TraX bell is slow ringing and sounds more like it is beening hand rung. So I converted a bell from the NALW Berkshire for MSTS and now I'm releasing it. Here is a sound sample.
P.S: Be on the look out for CanadianSteam's awesome berkshire sound pack, which is currently is an work is progess.
viewtopic.php?f=31&t=8340
I will be uploading it to the file library.