Twister, I had mine done @ SA's XD Custom Shop:
XD® SERVICES Trigger Work:
Combat action job (Reduction of trigger pull only. Suitable for self defense/carry.) .......$ 105.00
Competition action job (Reduction of trigger pull with reduced overtravel & reset. Designed for competition) ........$ 195.00
Overtravel adjustment added to trigger ......$ 40.00
Smooth surface on face of trigger ......$ 30.00
Increase trigger pull to 10-12 lb......
.$70.00
Very satisfied with the results; however, it's somwwhat of a pain/expensive sending gun back to them for service . . . but . . . if ya want it done right . . . and . . . the customer service leaves nothing to be desired. Ya pretty much get what ya pay for.