Well, another recent incident was told on YouTube and Wankelmania where someone bought a refurbished engine of yours and had it blown anyways in less than 2000 kilometers.
I mean you guys refurbish/rebuild the engines at such a low price that skepticism is and will always be the elephant in the room. Let's be honest tho, you can't simply rebuild an engine for 2k€, if 1 housing alone costs almost 500€. 2 housings and your budget of 2k is gone, including the costs of removing and inserting the engine into the car. Which means there must be some cuts to the costs or in other words: Unsatisfying quality issues for the customer. I don't accuse you of not being passionate about the work you do, don't get it personal, it just doesn't make sense to us how you can rebuild a rotary with such a small budget.
Surely you can rebuild a 13B engine for cheap like Rob Dahm has demonstrated, but they didn't touch the housings at all.
That said, calculating the costs of all the necessary parts and procedures to rebuild a rotary engine properly just blows the budget of 2000€.
Sincerely
Paul