Ugh. Sorry to hear that. Unfortunately I cannot assist as I know nothing about the 2-speed conversion nor have interest in it. I do know something as invasive as that requires everything to be spot on. Did you verify the shimming and collet?
On your Hyper 7? Do you know what version you have? i.e. TQ Sport, PBS, etc. What all has broken?
Ugh. Sorry to hear that. Unfortunately I cannot assist as I know nothing about the 2-speed conversion nor have interest in it. I do know something as invasive as that requires everything to be spot on. Did you verify the shimming and collet?