Hey Jason, I'm not sure I would drop the 901's. Only you know how many you have sold. If you have a loyal following for these, it might be in your best interest to keep a few on hand. Please take this as a suggestion. Your business is just that, "your business." I am not trying to tell you how to operate your business, you don't need my help, lol. You, my friend are top shelf and your products are top shelf as well. Your service goes far above and beyond expectations. Keep up the good work!! I'm sure you have noticed a few other suppliers are getting on board with the 510's. This should tell the buyers what is best.
Your loyal customer,
rsmith76
rsmith76