DavecUK Well that make sense, if I design, finalise, build, and sort manufacturing, logistics etc, then at that point it’s likely too expensive to make design changes… Alternative is show prototypes for feedback but that may lead to other problems like diminishing the brand/product by showing an unfinished and flawed product. At best beta testers are used to just find easy to fix problems or slight improvements on the base design or reveal bugs. This is also why you never buy Version 1 of anything..