Rod, the pair of EPs you get with the WO BVers would be enough fine to begin with. Especially with the SCT, where you can use the BVer without OCA, with OCA and with barlow for low, mid and high powers. And if you want an extra pair of EPs, cheap plossls like the GS would be fine. (there is no point getting premium EPs for a budget BVer.)
BVer won't help with double stars. They are easier with the higher transmission and sharpness of a single EP. Where BVing really brings out detail is on planets.
CJ, binoviewing and binocular viewing are totally different things. You get wide views with the 25x100 but not with a BVer. And a BVer gives you medium-to-high power views of clusters, nebulae, and the planets. Oh how I love those awesome 3D planets!
