Hi all, I am considering purchasing another XD. I had a XD9 subcompact, but sold it to my mom. I have a XD45 compact tactical now and I have been leaning towards either an XD or XDM. I'd really like to know if anyone has experience with using a EFK Firedragon, Bar-Sto, or Storm Lake 9mm conversion barrel in a Springfield XD40 Tactical. If I go that route I would get the 9mm magazines for it as well, but I'd like to know what kind of experience you have, if you need anything else, like springs (Bar-Sto's website says you need a 13 lb. spring, but the others make no mention of needing to use a different spring), and what your experience has been. Any FTE's or FTF's? Have you had to make any modifications? Also, if you have experience with more than one of those barrel manufacturer's, what has your experience been? I am thinking of a 9mm more for being able to reliably use cheaper (sometimes dirtier) ammo in a more powerful gun than for turning it into a tack driver. As such I would rather go with a barrel manufacturer that machines their barrels a little looser and trade some accuracy for a little more reliability when shooting.