I received my CCW almost a month ago, and I've decided I want to pick up a P99 for my first gun. Now, the problem I'm having is narrowing down my choices of P99s. The only two things I'm dead set on are it being chambered in .40 S&W and having a titanium slide. I've heard there's certain caveats to both in that the .40 S&W is prone to cracking in the poly frame, and sensitive to reloads; and the titanium finish I've heard does not stand up well to the abuse of daily carry. These I'm willing to accept. Where I'm having a hard time is DA/SA vs. QA, as well as early vs. late style. The titanium slide really narrows down when and where I can purchase, as I'm sure everyone knows it's discontinued. I've been able to find an early style DA/SA, and a late style QA for sale. From what I've read off the forums, I think I'd prefer the DA/SA. I'm not certain though, as I've fired a couple of a friend's berettas and they were both DA/SA, and the SA pull was so different from the DA that I thought for a moment that the gun had malfunctioned. Then, the question is, aside from the mounting rails and the "ski hump", is there any significant difference in early vs. late style frames? Is one preferred over the other? And finally, if I were to go with one style trigger and/or frame over the other, and decide that I didn't like it, is it possible to convert the frame style and/or the trigger style? Seems like one could just swap the slide with any other P99, but is that legal? I apologize for my drawn out post, but I'm really anxious to pick one up, especially since the titanium finished versions seem to only be getting harder to find. Thanks in advance!!!