Not all DTs are 1T guys. I’m guessing Carter could do it here and there, but he’s more 3T.
Jordan Davis is the Eagle DT that is more comparable to Mazi for the role they will play
I sort of agree, definitely see where you're coming from there, but regardless they are both still interior DLs. Playing mostly 3T Carter will have more chances to show up on the stat sheet, but you can still evaluate their skills and compare the two. With other positions we don't worry about comparing X receivers with Z receivers or an inline TE vs a flex TE. I'm not a fan of making too much of preseason snaps (I'll wait until the regular season), but just looking at the two players so far it seems that Carter is more advanced in understanding leverage and how to use body positioning.
I'm a Mazi fan, but certainly not a Mazi apologist. I think he should be compared to Carter, and the end goal should be for Mazi to be good enough to play multiple techniques along the dline to maximize his snap count. I'm not lowering my expectations based off of mixed results weve gotten so far on a small sample size. If this were an undersized 280lb pure gap shooter compared to a Vince Wilfork I think your argument holds up better, but we have two massive human beings with a freakish strength/athleticism combo who's jobs will be 80% similar, especially on run downs.