The tyros 2 I inherited and currently use sounds great to me. Some sounds I prefer from others, like saxes and strings from ketron. Styles are more than sufficient. I could continue to use it the way it is , but..

It is larger and heavier than today's boards. I would hope Yamaha and others current offerings have less steps to go through to change and save settings. Four or five steps to save a voice or other change in a registration is too many. Making global changes like midi channel profile settings shouldn't return to default settings after powering down. I welcomed Korgs improvement in this from the pa500 to pa600 models when I had them. Has Yamaha streamlined this in 10 years? Improved , streamlined navigation are welcome and sought after changes for me. Needing to find work arounds for an older board makes me wonder If common sense changes have taken place by now..

Changing as a player, I have less patience than I used to for complicated menus as I get older. I know some guys love to have dozens of sub menus to go into to adjust minutiae. I don't personally need to alter every parameter known to man. Most view the availability to do this as advances but adding more isn't always improvement.
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The older I get, the better I was..