This statement serves as a a caution about gun writers and online reviews:
...Trigger-wise, the Colt uses a “V” mainspring rather than a flat mainspring (though the “V” shaped spring happens to be flat). Because of this, the Colt is long action and S&W has a short action design. All things being equal, the Colt’s long action double action pull will feel lighter through the longer arc since there is more leverage...
https://www.thetruthaboutguns.com/or...s-colt-python/
I assume that Valdés read somewhere - probably in a few places - that the stacking in the trigger strokes of Clot's V-spring revolvers were the function of the V spring when it's actually the function of the geometry of other parts, as is the length of the trigger stroke. Also, if he wants to discuss the length of the trigger stroke, it would be nice if he mentioned that pre-WWII S&W's had longer trigger strokes - with the correspondingly better DA "pull" but that the travel was shortened to slightly decrease lock time for target shooters who fired in SA mode.