Be careful to well support the barrel area surrounding the front sight roll pin.

I've seen folks bend, distort, damage their gun, because that 617 stainless is a bit softer than regular S&W gun steel, and the sides of the front sight area is not particularly thick.

Also, If You change the Patridge front sight blade to a Ramp blade, You're going to need a lower rear site blade, because the ramp blade is significantly taller, than the patridge blade. Not enough vertical adjustment.

Measure the height of the rear blade (top to bottom), if it is .160", you'll prolly need a .146", or if it's a .146", you'll prolly need the .122" or whatever.

Have Fun!