I'm sure this has probably been discussed before but, I'm thinking of getting a steel guide rod for my G23 to replace the factory jobby. Lone Wolf seems to have a nice one with spring. I don't know what the strength is of their supplied spring so, I'd guess it's best to stick with the spring that came with the pistol.
Anyone tried one of these and had any ill luck with it? I had one for the G22 some years ago and it worked great.
Lone Wolf Distributors - Product Detail - LWD S/S Guide Rod Assembly for G19,23,32,38 - $24.95