Thanks for the link,
@Annihilator - I thought it was a well-written and remarkably comprehensive piece.
For others interested in dry-fire, Annette Evans' "The Dry Fire Primer" and Claude Werner's "The Tactical Professor" blog (which has an archive retrieval search function for "dryfire" -
https://tacticalprofessor.wordpress.com/category/dryfire/ ) are two other excellent resources.
As with any other training tool, there are some who believe more/less than its effectiveness.
Ken Hackathorn suggests that dry-fire is most helpful to novices and beginners while Robert Vogel openly confesses to putting in at least twice as many rounds of dry-fire as he live-fires after each competition, specifically so that he can work to eliminate any bad habits he may have picked up while live-firing under the stresses of competition.
It's really no different than similar individuals' views on sub-caliber training, airsoft cross-training, etc.
Find what works best for you, and understand the compromises that your chosen training method(s) entail.
For me, I typically dry-"draw/holster" a few times immediately before I arm/disarm for the day. This gives me daily practice that refreshes those important "muscle memory" pathways, and also accumulates quite quickly over time. In terms of dry-fire practice, I actually use my training/practice-gun which I keep clear after classes and range sessions (and re-check prior to each dry-fire session), but I do confess to not doing enough of it (this includes with the AR, too).
That said, when I do keep in-practice through dry-fire, I find that my overall marksmanship is a lot better, and my weapons-manipulations smoother.
As to where to draw that line between practice and, er, obsession
?
I think that this will differ for each individual involved. Our unique goals are not necessarily the same, and similarly, our individual experiences and innate talents/shortcomings are also different.
What I consider to be more important or needs more routine reinforcement may or may not mesh with that of any other shooter.