the sil was nice knowing i could let it touch wet ground or the wet underside of the tarp during setup and not have to worry about getting it wet. sil also sheds dirt really well. i have recently been thinking about momentum or epic malibu. watch out for regular dwr though, it will wear off eventually. i realize momentum is pretty close to regular dwr and i need to see how well it really holds up, supposedly the tight weave itself does alot, that's what it says on thru-hiker anyways, i'll have to see it for myself first.