Russ,
Trimming a spring to remove "grit" is just such a statement, that worries me. (I think I know your actual meaning.) The "grit" your feeling is from an unpolished surface, not the weight of a given spring. Yes, a spring of less weight will push less, causing less drag on a rough surface, but first smooth that surface and it wont matter the weight of the spring in relation to the drag felt. That is not any way to "improve" a trigger.
I follow your logic 100%, well put. My first Handi trigger job I did not cut the
spring, I followed the instructions in the FAQ area, after the 10th or so assembly
of that trigger I cut the spring on my own for a little less "feel". Keep in mind
I've always owned high end guns like Anschutz pistols/rifles and am picky about
triggers. Im certain a decent trigger job is possible without cutting the spring.
On my most recent Handi trigger job I stumbled on the other FAQ trigger link
and noted the author had cut the spring himself. This trigger job started with
a cut coil and I noticed the the difference as I polished and assmebled this gun
early on. From a mechanical standpoint on the function of the spring I "think"
as long as the trigger returns posotively while the gaurd is held in your hand
I believe if all else works correctly you "should" be good.
As I sit here I am squeazing several triggers, the Anschutz is undoubtably
my favorite but our reworked Handi's are neck and neck with my reworked
Accutriger or my S&W 1500 (Howa) target rifle with Schillen trigger (stock).