Hi all,
I found a feature in K10D - FW - ver.1.10, that allows you to adjust the strenght of the SR.
This feauture is only available when in Debug mode and you power on your K10D. All you have to do then is press down arrow and then left or right arrow depenging whether you want to decrease or increase the effect of SR.
I guess no one has discovered this yet as I don't recall anyone mentioning it on this or the other Pentax forum.
Here are the screenshots from my K10D FW ver.1.10.
Have not really tested yet the difference when changing this setting but decided to post it here for my fellow Pentaxians so they know.
Cheers,
Voe