This rig isn't just comparable to an Erskine - it IS an Erskine. Look at the pictures and compare them to pics of the rear pull at the Erskine website - the're all the same pics, right down to the closeup of the chute rotator that's actually from a QA model, not a rear pull. I Googled VirTau - the domain registrar for their website is enom.com - a service that sets up web storefronts for buy-and-resell businesses. If they are just a customer, I doubt Erskine would agree to let VirTau use their advertising materials without attribution in reselling their products. Has an odd odor to it.