I have a Sig Rascal 40 and love the plane. I powered mine with a MDS 48 and it was more than enough power.
I think this is one of the most smooth easy flying models I have. It will knife edge, inverted flight, roll etc.
The only thing it never did very well was land with power. I know MDS stands for more (dead stick landings) but it is such a pain to change engines with this type of mount I just got used to it.
It got to be kind of a joke at the field that I was working on being a sail plane pilot.
[8D]