I was using an 8mm and 17mm eye piece. What you have shown is pretty much what I was seeing, albeit tiny in the eyepiece. And yes, it probably was about the same size as Saturn. I was expecting to see some kind of detail on Saturn. Jupiter, for example, when I see it, I have an idea in my head that I should be seeing some spot details ............... Won't be seeing anything if it's as damn small as Saturn!!
Star test ............... Mmm, looked at that ............... More confused. I think I'll put the scope away for a while and probably forget about it.
The 8mm eyepiece would be the one to use for Venus, 17mm is a little long. It does sound as if your expectations are a little off though. While all of the planets are going to be pretty small unless you have a very large telescope, you can still see a great deal of detail on Jupiter and Saturn when the atmosphere is calm. The detail on Saturn, though, is much more subtle than on Jupiter, and non-existent on a night with poor seeing. A classic visual test for optical quality, visual acuity and seeing conditions is to see the gap in Saturn's rings. Right now with Saturn's rings tilted less than 3 degrees, that would be possible but more difficult than at other times. A somewhat easier test would be to see the black space between the rings and the disk of the planet. You should be able to do that with your setup on a good night, but it will require some careful focusing and patience.
Jupiter's apparent size is about twice that of Saturn, or about the diameter of Saturn including the rings. You should definitely be able to see some detail on all but the worst nights. The most apparent detail will be different colored cloud bands. The great red spot will be visible most nights unless it's on the back side of the planet - in which case, waiting a few hours will fix it, because Jupiter completes a full revolution in about 10 hours.
The star test is the ultimate test of optical quality that can be performed without special lab equipment, but you do need an eyepiece that yields a magnification of at least 200X. Of course, you can use a barlow to achieve the high magnification. And you also need a night with good to excellent seeing.