I have heard some disquieting news about the above mentioned web-based businesses dealing in registrations and sample packs for the Yamaha Tyros keyboards .... it would appear that it's the same 'old issue' rearing it's ugly head concerning the integrity of the owner of the sites.
The matter seems to be serious enough that some of his customers are now venting their anger at him through various keyboard forums ... this is causing anxiety and uneasiness for others who may have outstanding orders with one or other of the sites.
Please take care if your'e thinking of trading with any of the three web-sites above; and if you do have any doubt as to the honesty of the site owner .... then don't part with your money, I would hate to see any of you loose out ... especially to someone who has allegedly displayed 'opportunistic' tendencies in the past when it come to his business dealings.
This post is without prejudice and is just a word of warning!