The stratos ASX was the super fast hull about 10 years ago.Legendary boat builder Allen Stinson(asx) designed it.It supposed to have been the fastest stratos ever made
There is one in my area that is an '03 with a '03 225 Etec 21 foot. Looks clean just have not seen an ASX before. It is a dual console and would be alot more comfortable in the winter. This would be a step up from an 18'9" 283 Stratos.
The ASX was a very limited production boat. They are capable of running about 5-10 mph faster than the other stratos 20 ft boats. They have a very small pad. I think they are a little harder to drive. They are usually expensive as well. I would jump on it if I could.