Thanks for the info.
I pulled the strain screw and it has been shortened, I thought that trigger pull was too good to be true.
Anyway, I took a spent large pistol primer, cleaned it and flattened the inside with a small flat bottomed punch, this came out to about .015.
I slipped this over the end of the screw and the result is that now, the apparent hammer pressure is about the same as my other 'K' frames.
Next step is to check the actual weight as you have described and then back to the range.
Thanks again, Len