I'm primarily concentrating on just 2 platforms this year for carry, duty (running a church security team in a major metro area) and IDPA-my P30L V1 LEM and Beretta 92D (with upgraded Wilson Combat components, Tool Tech/Trijicon sights and Langdon grips). Both platforms are inherently exceptionally accurate, but the DAO triggerpulls on both require extensive practice to consistently do well with.
Quite frankly, empirically I've found that I shoot two other platforms more easily (i.e., accurately, with a natural index, and probably faster)-Glocks (specifically, my Gen 3 G17 and Gen 3 G19) and my DA/SA Ruger P89 (which is freakishly accurate, has a beautiful triggerpull, and I index superbly with). However, I feel that the P30L with LEM and the Beretta 92D DAO are likely superior threat management tools, hence their top billing in my line-up.
This year, since my GSSF matches crashed and burned against the Wifely Review Board (being trumped by my IDPA regular and State matches and a fall hunting trip), my Glocks will likely receive very little holster and hammer (well, striker) time this year. Ditto with my 1911s and Hi Power. Revolvers will likely see one to two month's concentration (including a full-house (200 power factor floor) magnum revolver challenge IDPA match in June.
For me, the concentration on my church security team duty platforms makes sense, given the high chance of injury to bystanders in the event weapons come into play if I'm not dialed into my duty platform. Sometimes the "adult" decision trumps the more fun/hipster inclinations....
Best, Jon