For those of us who grew up in the age of external hammers, we have no more issue lowering a Hi Power's hammer than most other pistols, but there's really no need to do that.
....except when I killed my water heater decocking my 1911. Actually had butter on my fingers. Cost me $500.
That's why I generally discourage people from doing that on a loaded chamber. I grew up shooting guns with exposed hammers. Hunted with a Winchester 94 and a Remington 1889 Hammer gun, so I got pretty adept at manipulating a hammer. To do it on an auto pistol takes a very practiced hand...minus the butter
