I have a Ruger SP101-three inch wearing old model Ruger OEM grip with checkered Ruger grip inserts. To adjust this revolver to its most effective optimized concealed carry version, what should be done? I do not refer to making it a "speedy" drawing revolver, or using any specific ammunition, or using a specific holster. I ask for guidance for the revolver, including grip, sights, tuning, et cetera, orienting the SP101 for concealment.

One peripheral question with a "yes-no" answer. Is there any difference in what need be done to the revolver were it to be worn IWB; OWB; in a shoulder holster?