I have two Tactical 40"s, shoot nearly every day, use the cheapest "remanufactured" (once shot relaods) conical nose 180 grain lead bullets I can get, have several thousand rounds through them and as others have posted, I have never had any malfunction.
When brand new, I never cleaned and lubed either prior to shooting, as someone says caused thier problems, I do thoroughly clean each after several hundred rounds, but not everyday.
I aslo, have not experienced any of the "rust" problems voiced by many. If I don't clean them, I give them a wipe down with a silcone cloth.
I recently put "Don's" guide rod and a 22# spring in one , and don't seem to notice any magnitude of difference between the two.
I'm waiting for my Bitone 40 SC to come in, and maybe it will prove to be a little more cantankersous, but thus far I'm extremely pleased with the XD 40 Tacticals.