I have Scotch Mule x Texel cade lambs and they are pretty ace... fast growing, gaining weight nicely and seem to enjoy thistle tops, nettles and rougher grass as well as the good stuff.
They are quite baldy on their heads, ears and undercarriages compared to other breeds I have so would be a little concerned crossing them to naked Charollais' despite me loving Charollais x's as I keep bleating on if lambing outside although Charollais are renowned easy lambers.
I will prob cross mine to a Lleyn if i can get my hands on one... easy lambers, prolific, multiple births and fleecier. A Lleyn was a very good cross to my Charollais'.
I am also a huge fan of Shetlands crossed to commercials i.e to my Charollais'... the results were fantastic and all lambed outside on their own.... popping out like cherry stones.