Why would you abandon Cindercoat?
I'm thinking of using my DH now that one dropped for me.
With Pride's Fall and a Cindercoat, Rapidfire seems like it would run at almost generator efficiency.
I'm only talking about with the 6 piece Maurader's set bonus. For the 5 of 6 pieces for the Maurader's set bonus it's a choice between using the chest or the gloves. My reasoning is that the T&T gloves will provide more overall DPS from the sentries using your hatred spenders than the 20% fire from cindercoat. Not sure if it's true or not but it's worth consideration. For the whole build, you probably wouldn't be using the spenders much yourself to get the resource reduction benefit from cindercoat.
Alternatively, building all Physical% with T&T gloves instead of fire would certainly be a damage boost since that would affect the companions as well as sentry spenders.
I have no numbers to back this up. It's all supposition.
Without the maurader's set, Cindercoat + fire crap + CA:LfB is the number 1 build for a DH without a doubt.