I've been looking at sustainer systems for use in my s420. I could only find Fernandes and sustainiac systems. Is that all there is? Also I know there is quite a bit of work involved in installing them. My problem is that the guitar is very slim, hence the name, and im afraid that the system wont fit. I'd rather not route the guitar but if I really have to I will. So has anybody got any experience with sustainer installation? Especially with S series guitars?