IMHO eletroplating the firing pin is more trouble than it's worth & I don't expect it to make much of a difference if at all, the thought crossed my mind too at one point. Unless your setup to electroplate already or have a hook up it won't be cheap. Electroplating generally does not improve electrical conductivity, it helps prevent wear & corrosion. The firing pin is stainless steel which withstands corrosion better than better conducting metals but the firing pin is not necessarily corroding. The sparking over time is creating oxidation. If it was electroplated the oxidation can still form. Simple solution, reduce sparking, you then reduce oxidation. I personally wouldn't worry about it much & I just take the time to keep it clean. If you love your Reos you will find the time to take care of them.
Now electroplating tbe Reo like the Nickel ones would be nice. A copper plated Reo would be bad ...!
I'm the type that can never leave well enough alone. The Reo is not exception in looking for something to mod & I have yet to find any functional improvements I can make that are worth it. I have a few ideas for the firing pin but I just don't see a need to even try them.
Check out post #54 here: http://www.e-cigarette-forum.com/fo...il-cotton-honest-test-run-2.html#post10145938
I want to emphasize what Dizzie is saying here by adding my layman's observational 2 cents. I had some issues with poor conductivity and sparking as I got to know my REO (#1 . . . . hah