After all is said and done, personally i think you will deliver and i dont think you will rip people off. this snow ball has been rolling for sometime now and is huge. You cant keep fobbing people off for ever and you wont just disappear off the face of the earth, i think you are just trying to buy time to get your foil right.
i feel in your enthusiasm and excitement you unleashed your plans so early and got so much interest that people wanted there purchases quick, thats just boys and new toys syndrome, we all have it. I waited a year once for a custom rifle barrel form the states, was driving me mad but it arrived in the end and i was so pleased with it i forgot about the wait. Although you will deliver goods your delivery dates were not realistic. when people pay out money for kit, you want it like yesterday. As you were obviously still in the prototype stage, you cant bang out a good product with in a couple of months without testing and refining, no matter how good you are!
So if you have a realistic delivery time just say it!!!! dont bullshit. cos that is when all this storm starts to bubble up. but at least people will say blimey ok well at least we know. and if you get it done sooner then its a bonus....
Thanks for the tips, but like you well know we all learn by our mistakes and some times thats the best way. Even after we have been shown.
Good luck Mr C