Hi AGTM,

Problem most DIY users here wanting to cut Aluminium is spindle power or lack of it.! Most are using router based machines and spindles with high speeds but little torque with typical 2.2Kw.
So DOC=1xd on 6mm cutter with WOC=1xd is mostly impossible with the spindle torque they have available.! Then you have the stiffness of the machine. Again being router based most are flimsy in comparison to even the weakest milling machine so chatter and poor finish dictate using much lower feeds/DOC etc.

I may give your cutters a try but I mostly use smaller 4-8mm cutters. Again due to spindle power but also material saving when nesting parts.
I'm a big believer that when it comes to tooling cheaper cutters are uneconomical as they wear quickly and put more stress on the machine not to mention much poorer finish quality.

Also I feel most people use the wrong tool for the Job, like not using a ripper for roughing.? Often this is down to the fact they don't want to change tools so will use one tool to do the whole job. This again is False economy because with a cerated edge ripper you can cut far deeper and remove far more material in fraction of the time without wearing the tool away or stressing the machine/spindle.
Also they don't actually save time by not changing tools it actually costs them time and money because the smaller tool cutting at lower DOC takes much longer than any tool change. Plus the tool and machine are getting hammered because they are working much harder than they need to.
On top of this Finish quality is lowered because by the time they get to the end of the job the tool cutting edge is so worn finish is poor. They don't realise that by using rippers and then just doing a finish pass they actually save money because time is reduced and tools last much longer as they are cutting efficiently and they get a much better end result.!

That's my take on it. . .