Hi, From last 4 year i have been using my Yamaha PSR 1500, now i want to upgrade my keyboard. So for my budget i am planning to purchase either Yamaha PSR s910 or MOX6/8. Please suggest which one would be better option. I am looking for a) Keyboard with good instrument quality b)Keyboard which can allow me to create Songs and create my own Style/Arps.So that i can create my own style/Arps for songs for which i can't find buildin style/arps useful. c)Keyboard with good key feel. d)Edit voices and load voices. e)More features to explore & enjoy. f) Since i am upgrading from PSR1500 , i am looking for some change , i dont want to purchase keyboard with similar feature. I am not a professional player so i am not planning for any more upgrade so i want to purchase a good one.