If you're just looking for something to spin around the sky you will want the snapshot. The Tensor series is really more true power kiting.
Don't know how big you are, but the 1.9 is plenty large for me and in high winds I get pulled around pretty good. I haven't tried the 2.5, but I bet that might be a lot of work.
Yeah I do have a slight disability so don't think I will handle something too big, so snapshot would appear to be my best choice,cheers.