Well, you cant compare the spectrum to the crossbow, both completely different kites. The crossbow has a much larger wind range.

What you were experiencing sounds about right for a C kite. Gusts of 27 would definately pull you around while trying to stand on the beach. I ride my 13m up to about 30, and I am 190lbs. At 30 I am getting pretty uncomfortable and want to go to my 9m.