I am currently bagging three Alphas: a purple 173 gm Apex, an orange 167 gm Apex, and a green (cloudy, not clear; they are different)173 gm Eternal.
Straight out of the box, I have found the three discs to be similar, flying like equivalent weight DX Teebirds, or like Star Teebirds at about 160 (or less) gm. You probably know that the new 170ish gm Star Teebirds nowadays start out very high speed stable, with some low speed fade, and break in very slowly to great straight fliers. Most all the Alphas I have thrown so far have some slight turn to them immediately, which makes them easier to get bigger distance from right away (the exceptions perhaps being the yellow Apex and Clear green Eternal).
I have not used my Alphas enough yet to have broken them in significantly, so I cannot say what they will be like after say a year of use.
Alphas has been characterized by Mint Discs as "power fairways". I am not sure what they mean by this precisely, but know that I do not throw them as hard as I do equivalent weight Teebirds, which I generally can throw very hard because Star Teebirds are so stable. James Conrad mashes on Teebirds. I do not believe that Alphas could handle that power, but that's okay, because I do not have that arm speed.