Baritone    
This design is produces a big rich full baritone sound with lots of sustain and little attack coupled with ample volume.
Tenor
I designed this uke while living in Hawaii to produce the sound that the local musicians liked. Light attack but lots of sustain and note clarity, strong in the mid-range. Good for solo work and also for strumming
Concert  
This is the 2nd instrument I designed in Hawaii after the Tenor. I strove for it to have big tenor–like characteristics in a smaller instrument.  It has great note separation and brighter high notes than a tenor is capable of producing. It also has more attack than a tenor.
Soprano     
In Hawaii nobody (except children) play soprano ukuleles so I ignored this fine little instrument until after I was back on the mainland for a number of years. It turns out that it is a popular little instrument here. I thought that the old Martins and Gibsons were mighty fine sounding sopranos so my design borrows the best design elements from these two. What I make is a light and lively little soprano with lots of spark.
Concert 10
This is my most recent addition I designed in 2010 (hence concert 10). I wanted a concert that was more soprano like with a strong attack and little sustain. This instrument has a lot of bite. If you like that good soprano sound but want to play a little larger instrument then this choice could be the ukulele for you.

An attractive hardshell case is supplied with most instruments