JC-Nismo

So you called them and told them about the threads before you modified them and there response was
" we can't help you with that" ??? You should've boxed them up at that point and sent them back, but like others have commented, I live minutes away from Z1 and Jon and those guys up there have been nothing less than super professional to me and not to negate your issue, it just seems a little odd that they would ruin a seemingly flawless reputation on this site over $1900. Good luck man and I hope you get it resolved.