"Ratings" is a misnomer. I think what you are taking about is "recommendations". Generally, I think most experienced machinists will recommend you start at 1/2 cutter diameter for your axle depth of cut and anything up to full diameter for your radial depth of cut, if your set up is rigid enough. Rough to within 0.005-0.010 and then take a finish pass at full depth (if you have the flute length to handle it and you do not get too much deflection of tool or part). For spindle speed, you will have to determine by, maximum RPM of your machine, coolant delivery, chip evacuation, chatter conditions and heat build up. Chip load is also determined by coolant delivery, chip evacuation, chatter conditions, heat, and cutter geometry. 2000 sfm sounds kind of high. I would think you would have heating problems, which in aluminum would cause material to melt and stick to your cutter. I would probably start with 800-1000 sfm and go from there. 0.007 inch per tooth sounds ok as a starting point for full diameter radial DOC. As depth of cut decreases, chip load can increase.
Machining is as much or more of an art as it is science. There are conditions in machining that cannot be built into any formula, such as machine harmonics. Personal experience and judgment play a huge part.