I'm not 100% convinced I understand it except bigger steel tanks good, smaller ally tanks not as good. Harder to donate a single bigger steel tanks when side-mounting with two steel tanks as bailout, so long hose good. Standard config good because muscle memory encourages quick reflex reactions to problems. rEvo / Choptima / Sidewinder non rack configurable because of offboard bailout being sidemounted, but may get you into tighter spaces. Practice with your buddy so as to develop reflexs as per @Dsix36 post.Which probably explains why it's taken so long for me to understand that longhose malarkey!