A first view looks more like it should be equally expensive or maybe less expensive. (Sure the case is expensive, but I wouldn’t count this to the “upgraded BOM components”.
The only more expensive part are the MOSFETS. 3,68€ (IRF7749) to 3,30€ (IRFS7530) for one FET. With the higher quantity the differences get lower.
You are saving a lot of money using a lot less capacitors. Like going from 15u100V to 4.7u100V, 2 63V Elkos instead of 3 Elkos and more capacitor “downgrade”.
To the two testing stages. When they are as good as your old “spin up testings” which don’t be executed like you can read here: http://vedder.se/forums/viewtopic.php?f=7&t=408 that brings nothing.
But I think you will find enough people here which buy your new VESC-X and then see that they have major quality problems. Good luck. Then they can buy your warranty to get a new one.
You expected chaka to upload his “upgraded components” but you are not willed to upload at least your BOM (to see the “upgrade”) or the layout? Very contradictory.
Good to know. Thanks.