I have a set of Mac straps with the integrated axle loops. I loved them at first but with less than a year's worth of use they began to show wear around the buckle that adjusts the axle loop size. I tried to mitigate the problem by varying the loop size but all that did was wear out other sections of the strap equally. A better option would be to run regular straps with separate axle loops thus avoiding the particular wear problem I just mentioned. If you must have straps with integrated axle loops buy the longer version, making those loops eats up strap length. One more thing, washing and drying your straps after hauling you muddy rig is yet another post run chore.
I got tired of worrying about frayed webbing and the high maintenance so I went back to what is tried and true for hauling dirty, heavy metal. Chains and binders secure my muddy loads nice and tight, cheaply, and they don't ask for a bath afterwards.
Both systems have their places, so buy both. :redneck: