I only have 2, both in the 4006 family:
4006CHP issued to California State Park Rangers. Before a pot load of trade-ins showed up on Gunbroker the last few years, this one was unique and had the claim to fame of being listed on Pg. 304 in the S&WCA 3rd Ed. as the known example:
Next is a rare bird... a Performance Center produced 4006 IDPA for Lew Horton. They (LH) confirmed only 4 were actually distributed by them. This lettered as being shipped to Lew Horton 12/17/2002.
I've been told that 12 total were made... where the other 8 went is anyone's guess.
It's a safe queen... unfired. One of these days I'll work up the moxie to shoot it... with the match barrel, Briley titanium spherical bushing, hand fitted slide and PC competition action job... it's gotta shoot like a bat out of hell.