hi regarding the 505, i picked up the rs900 not long ago and was thinking it would be the 4 string equivalent of my sr505 but theres just something about the 505 that is hard to describe, its so easy to play it sounds better and the action is so low,i dont think i will ever get rid of it and its probably my first and last 5 string does everything i need
i thought the rs900 being a neck thru and all that would improve things a little but the 505 just works at what it does so well and also it has a nice string tension i found the 900 with thru body stringing a bit more tighter string wise