I have the Tactical, and having shot the Expert on a few occasions, I'd recommend the former over the latter.
Even if you never plan on adding a silencer, Capital City Firearms markets a flash suppressor for the Tactical that not only significantly reduces flash signature, it also noticeably tightens groups and improves follow-up shots by dampening felt recoil. At a cost of about $100, this product really improves overall performance.
I added a SureFire Tac light, which diminishes recoil even further, to complete the package. Blackhawk makes a holster specifically designed for the rig.
I think the total cost for everything was around $1250.
