15 inch Caldwell need help to select right one

Hey there Joel and thank you for your patience with us. Your balance looks close to both our S380-15 and S385-15 channel balance. The only difference between both of these balances is the depth measurement of the bottom balance shoe. For the Series 380, the depth measurement of the bottom balance shoe is 1" and for the Series 385 is 1-3/32". You will need to measure the depth of your bottom balance shoe, like in the diagram below, to determine which balance would be the better match. Whichever one chosen will go with the 1440 option. 

Alternate view of 15-004