Similar problem, I use an Opticron BGA 10 x 42 monocular, but am sorely tempted by either a Swaro or Vortex spotting scope for more accurate distance viewing. Funnily enough, I still use my Swaro 10 x 25 bino's as they're handy to carry in a pocket and I can focus one handed, but as you say - a bit of a waste having two tubes!