I thank everyone for your concern and for your help. I am new in this forum and it makes me feel good to see your replies.
I was actually never concerned. I believe Mr. AJ enjoys a very good reputation. I am sure he is very busy with that new Top-of the-line arranger. I am already dreaming with one. That will be a killer keyboard. I am going to start saving since I know it won't be cheap but worth every cent.
In the meantime going back to my SD1, I still love it so I will be getting the EXP. to bring it more up-to-date, especially some new styles and sounds. I hope to get a new more expressive, deep and bright DX type electric piano sound. Any comments those of you who have the EXP?. Any comments on the EXP are welcome.

AJ, I will email you very soon.

Thank you all,

Falberto