Sam - Thank you. I appreciate your point regarding the request for serious answers only.
Obviously, one doesn't need a recoil spring for a T/C encore (I've owned one in the past) and while I can appreciate the humor of duct taping two 20# springs together, that's probably not going to work very well.
I apologize for not getting back to this thread earlier.
I have made the request to Wolff for a 40# spring set.
That request was denied.
Then I asked the company if there is any additional rate they could increase the spring.
I explained to them that if you load the 10mm cartridge near or at the 37,5kpsi current SAAMI spec, the 23# spring set in the G29 is still insufficiently sprung to reduce recoil enough to the point where the cartridge casing is spent within a reasonable distance of the shooter.
Their reply was that they simply have no plans to produce a high rate spring for this pistol.
I respect their decision to limit the production of such springs, as I'm sure there are several reasons they should choose that decision - none of which have to to do with actual safety, but some of which could be associated with a safety "theater" of sorts (The main actors being irresponsible people and attorneys).
Despite my thoughts on the reasons, I have been unable to find what I am looking for.
THR acquires a great deal of traffic - some of which include intelligent, knowledgeable people. If one of you should have information on an advanced spring concept (particularly a design that has variable rate springs associated with it), I would appreciate a response to this thread or via private messaging.
Thank you.
TW