Denhoff,ND right in the center of the State | That inside slider would be a pain in the A$$, would be frozen up with **** every time here in the winter. Rollup is much better, not to many big rigs with sliders, theres a reason why.My 50ft Wilson pot has nearly million miles and rails were just replaced this summer, still using same panels with new rollers and pins, I bought my Wilson used and it has a outside slider, works really well, but if I were to buy new it would be a rollup. Terry |