...how would changing to a Tyros 5 (a self-admitted financial hardship) change anything?...
I prefer the Tyros 5 because of:
1. The available styles
2. The Mega guitar voice technology
3. The human voices
4. More suitable for US (whatever it's called) music
5. Intros & endings
If I could have the above on what I have now, I would rave even more. it's a software requirement, not a hardware requirement. And it's possible, but unlikely.
Henni