Sorry I am a bit late coming across this thread but I may be able to offer some useful info.
I cannot lay my hands on a copy of the flight manual from our Sportstar ( sold 24-4010 over a year ago ), but I am sure it listed the max X-wind for that aircraft as 18 knots. Our Sportstar was the original version with the small fuselage fuel tank, one of the first 4 or 5 to come to Australia.
I have no doubt the manuals have been re-written for the newer versions and to suit the all determining American LSA regulations.
Now here's the twist......
I am sure that while doing some major homework on both the Aussie and American LSA regulations that somewhere buried in the fine print of the USA version was mention that demostrated X-wind ratings should be given with the aircraft in full-flap configuration .
In reality not many of us would use full flap in any sort of strong X-wind, especially in an aircraft with as much flap as the Sportstar ( 50 degrees of split flap and a flap with a huge surface area ).
My Skylark which has even bigger flaps relative to wing area and a full flap deflection of 40 degrees, giving a similar effect to the flaps on the Sportstar, has a max X-wind at 90 degrees to runway rating of only 11kts.:ah_oh: When I queried this with the manufacturer they confirmed that the figure given was for full-flap configuration, a cover-your-butt worse case senario.
I have comfortably landed the Skylark in up to 23-25 kts X-wind while only using 10 or 21 degrees of flap.
When you get to the end of a long X-country flight of say 3.5 hours covering 420nm conditions on arrival are not always going to be what was forcast ( or even hoped for! ). If you are arriving at a field with ony one strip Murphy's law says that it will be a X-wind. At this point what can an insurance company expect you to do? Run out of fuel trying to get somewhere else or take on the X-wind if as PIC you are confident of acheiving the landing safely?
Personally I practice X-wind landings at a field with more than one strip so if it reaches a point where I am not confident, I can just switch to the into wind strip and land safely. By doing this I have developed a good idea of the limitations of both myself and of the aircraft I am flying.
Hope this helps,
Cheers
Mick