The RD-250 boards were working no issues.
For the RD-300:
- all the keys on the 300 were playable - some would play too loud and then too soft. I assume that was because a lot of the contact strips were ripped up. I only had bought the 300 for parts so I can't guarantee.
- the Mid board appears to have rust spots on it where the screws were. The owner must have spilt water or something.
- you should consider the mid 300 board a bit of a risk.
Please note, Canada Post now requires a phone number for international shipping. Don't be upset if I ask for one, thanks.