Hi sharps_74
My P07 was quite rough OOB SA not too bad, but DA was very bad. Took quite a bit of work, but I'm satisfied with it for defensive use. On a DA trigger pull, you could notice the hammer being pushed to the left against the frame. Now I can get paper to slip between them during a pull. I stopped detailed round counts at 3000, It's a lot smoother now, but the Wife's is much nicer than mine with only 1500 downrange and no remedial maintenance.
The problem was not dirt. All our guns are meticulously cleaned after every range session. I recently started using Weapon Shield instead of the Tri-Flow I've used for years. I don't see Tri-Flow discussed much for firearms, but it's got a good reputation in competition bicycling.