this isn't an offer of a swap, but I had a vango 2011 helium 200, and even that is low, so I end up with a bad neck. So if the swap is for extra headroom, I should keep looking. 100cm is ok for headroom but the vango looses 15cm for the inner, which leaves something like 2 1/2 foot headroom when all is said and done. Very annoying.