My most used scope is a 85mm tv85. FL 600mm. F7. My medium power ep is a 13 Ethos. My high for planets is covered from 6mm down to 3mm. I enjoy all targets. Open clusters, glob clusters, nebula, ect. I can't decide between the 8 and 10 Ethos to complete the gap. I would imagine the 10 at 60x might be nice for a tight view of some open clusters. I imagine the 8 might win out with globs and certain nebulae. I would like some opinions. Maybe food for thought to help decide. Anyone have a 8 or 10mm ethos to compliment a 13?