I believe in KISS, other Doubles seem quicker to get into action--

Chapuis makes a good entry Double for the money-

http://www.champlinarms.com/Default.aspx...=3&GunID=22

or a Merkal can be had cheaper without ejectors,etc--

http://www.heymusa.com/inventory/merkel_470/merkel_470_1.htm

Whatever floats your boat!!