What can be gained or lost if i crossflash my BenQ 1655 to a Philips 1668?
you’ll lose your warranty. Also you will lose scanning capabilities (not really, but scanning at 0,8x speed isn’t fun anymore) and read speed. Maybe you’ll gain improvements in writing strategys, but I am not sure about that.
But there is no problem trying out as you can always return to Benq firmware.
P.S. Why don’t you ask in the Benq section?
You are right. Thank you my friend.