IMHO, the issue of short-stroked rifles is one that should come before the Congress and be decided. This should be done before significant numbers of NCOWS members spend their money on this only to have them disallowed later, much like the Ruger Bisley Vaquero.
I, for one, do not believe such modifications should be allowed for NCOWS and I personally would also advise against spending the money on this modification until it has been reviewed and decided by the Congress.
1) This cannot, in any way, be construed as an authentic modification. I also agree with OCB, this is not the same as "smoothing" or an "action job" on a revolver. Additionally, the short-stroking of revolver actions should also be prohibited.
2) This is not purely an "internal" modification. If you line up a bunch of rifles and open the actions, you will be able to tell instantly which have been short-stroked. And that's externally visible.
3) Just because SASS has headed down this "gamer" equipment race path does not mean that we should.
4) It is only an "advantage" as long as some folks have them and others do not. Once everybody has a SS rifle, the fields will again be "leveled" and another gimmick will have to be found. And the equipment race is on!! I do not believe an authenticity-based outfit such as NCOWS should embrace this equipment race concept.
5) Those who want to SS a rifle for SASS matches, should, by all means do so if they like, but that rifle should not be allowed in NCOWS. I would submit that pards who have the money to spend on relatively expensive SS mods, probably have the funds for a second rifle.
This is just my humble opinion, but there's my 2 cents worth.