My Sailrite Fabricator with triple feed punches through 1/8" HDPE plus several layers of Cordura and webbing, no problem. (It balks at 1/4" HDPE and 2 layers of webbing.)
The only drawback is it runs straight stitch only. No zigzag. MOLLE is still doable, but it requires a couple back and forth runs. Compared to fiddling with my old Kenmore, though, the 3 extra seconds per MOLLE stitch is worth it.
