If you're sold on the FTE style and ADM clamp, go ahead, you can make them work (though you're still going to have to get your barrel turned down even with the mini since the factory barrel is upwards of .90")...but saying they're just as good is false.
The Hellfire/Match and APA LB are just more advanced designs and both can remove quite easily (the Hellfire by hand, the APA with a wrench). Likewise, the ADM clamp is limited by the fact that it can't open wide enough to be taken off a rail and has to be slid on from the end (which is problematic with incomplete rails like MPA). It also doesn't provide the flexibility of Picatinny and R-Lock capability like the RRS does as well.
Anyway, good luck and great choice on the base (AT-X) no matter what accessories you choose!