Hi Dennis,
Well, quick answer... This plane will definitively not be the best for the slope !
But everything can be flown, so that will fly, but look elsewhere for performance and handling at the slope !
Small rudder will not help you to turn ( propeller help as that blow air to the rudder / elevator... in a glider, only speed will make them efficient.. or you will need to enlarge the area...)
For the funjet, that will be possible in a good dynamic condition !
Might be in Keelakee on sunday, Weather permitting of course !
Fred