Just took my HMG 2400 on a bunch of hikes and I'm would like to go in a different direction. I'm looking to take the dive into a completely frameless pack. I'm considering the MLD series of packs and the ULA CDT. I'm also considering buying used so that I can afford something like an MLD burn for three seasons and a exodus/CDT for winter. I am not at all familiar with frameless packs.