I know I have no say in this as I cannot afford it, but just something that I would recommend is to look into the overlap between the main and rod journals as mentioned by Mike Kojima in the MotoIQ article that the QR crank suffers from but then again increasing overlap means that the crank would be destroked or the main bearings need to be so much bigger. As you mentioned already, the first batch would probably need to be stock stroke. I'm not sure but since they deal with a lot of cranks, they should probably be aware of this and maybe have some recommendations without changing the actual stroke to bring the rod journal in for the overlap. Or maybe that's just a problem inherent to the Gen1 crank. I don't know I'm not an engineer yet lol. Just food for thought. Good luck with it and I do hope to see one come out.
Extreme Engine Tech: Jim Wolf Technology's Turbo Nissan QR25DE Powerhouse Part 1 - Page 2 of 4 - MotoIQ
, The balance shaft assembly is found in the bottom of the oil pan submerged in oil. It is the weakest link in the chain when the QR25DE is modified. On 2007…