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I have had the best success doing the following.
Excavate for a concrete footer to local specs regarding depth. In front of the wall excavate an additional width of 2'. Weave normally your spec'd rebar the 2 horizontal layers onto your spaced verticals.
The front excavation is for rebar bent into an L shape that goes from the front of the additional excavation, bends to the vertical plane with the other verticals, and is wired in. Concrete will have greater strength on the compression than on trying to hold something on top of itself. Your footer in cross section will be in a squat 'L' shape but with the leg to the front of the wall not back under the fill of the wall. Any slip pressure will be compressing forward onto the reinforcement rather than pulling at the attachment point and cracking.
I fill the voids of the cmu's with mortar or cement, but also backfill the wall similarly to an SRW, using clean 57's and also the drain pipe to daylight. PM me if you need any photos or drawings.
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