I'm certainly not Dagga Boy, and I'd certainly defer to his experience and analysis, but I did run a P229 DAK (in both .40 and .357 SIG) fairly extensively for a year or so several years back. Due to it's mechanical set-up, to take full advantage of it's lightened and lightest triggerpull, you need to consciously let the trigger go more forward on reset; a shorter reset provides a heavier triggerpull. My thought back then was that even though I had a "earlier" DAK P229, with it's lighter triggerpull weight than subsequent production did, for me the DAK juice wasn't worth the squeeze. My thought was that to truly and effectively reap the benefits of a DAK because of its unique characteristics, you really needed to make your DAK gun almost an exclusive choice for use.
The LEM has, in my opinion, extrinsically an equally effective (and lighter) triggerpull weight and short reset, and is much more of a "plug and play" situation than anything with DAK. Usually I find that SIG's possess better triggerpull characteristics than HKs; I do not find that to be true with the out-of-the-box excellent triggerpulls on both my HK VP40 and P30L light LEM, and the LEM does not seem to present difficulties in transitioning from it to other action systems. YMMV. And, if a DAK gun is your one-and-only, transitioning comparisons might be irrelevant.
Best, Jon