I mean Lesson In Romantics virtually was all written by him. Im not a huge Mayday fan, but If I remember correctly, he wrote most of the instrumentals and lyrics for all of those songs. And It is easily their best album. I'm not saying some of their stuff without Jason is bad. They got some great songs in their discography, but Mayday is a good band. They are not amazing, not great. They are good and I do enjoy listening to them sometimes. That being said, there are plenty bands in the genre who do it better.