Epsilon Lyra sometimes isn't a pretty split because it is so low and is affected by the atmosphere, although it is usually always "splittable" with reasonable aperture.
Nu Scorpii is another "double double" and is directly overhead. Taking the elevation factor out of the equation Nu Scorpii is a more difficult split than Epsilon Lyrae but is very doable in your C9.25 under good conditions. Under good seeing conditions when split, Nu Scorpii is a very pretty multiple star.