I am looking to buy a Kitfox and I was wondering what is the difference in the performance of a tricycle gear with pants vs a tail tailwheel Kitfox?

I already know about ground loops and higher insurance cost of a tailwheel Kitfox but what I am wondering is:

1. Does the tricycle gear with pants offer higher cruise speeds and or greater useful load?

2. If so what is the deference in speed and useful load?

3. Can I easily switch between a tricycle gear configuration and a tail tailwheel configuration?