I'm currently using a prusik setup to adjust my hammock while backpacking. I would love a mini 8 belay device or such to easily lock/unlock/adjust the length. I thought of a rope grab but it would need to handle 5mm rope, be economical and small. A ropeman might be an option. I'd rather just find a mini 8 and soft lock it. Soooo.... anyone know the smallest 8 there is? Or a better friction hitch? Or something that will lock on a carabiner? Or have any suggestions? Thanks!