Better to be safe and 100 percent.
I thought Wolff was where I dreamt up my reasoning, but I found it:
http://www.speedshooterspecialties....amp;cPath=103_96_235&products_id=685 " Miculek Revolver Spring Kit
$17.25
Fast trigger action & reduced pull weight for competition & speed shooting.
Balanced compression and rebound rates allow hammer spring and trigger return spring to work in unison. Together, they give a seven pound, double action trigger pull with a fast trigger return. Recontoured hammer spring helps smooth trigger pull, prevents stacking. Spring steel. Fits K, L and N frame revolvers. For best results, ammo should use
Federal primers."
[video:youtube]
http://www.bing.com/videos/search?q...D6D73EFCAAFB24C74EC1D6D73EFCAAFB24C74EC1[/video]
5:50 is an explanation of strain screw/weight limits.