Yeah as everyone else has clearly said... That is some B.S. for sure... Also stated above "they both should fit like a glove" and I personally wouldn't modify it until, my friend that is the very last resort, after exhausting all options for refund or replacement are gone. Then from what I see the hood could be very easily be modified with what another person said, "attaching a 1x2 or 2x2 strip of wood" installed exactly where the hood needs to be properly supported when a fixing to the top rim to support the sides, to correct their apparent negligence. Now the piece of plywood set on the stand to correct their inability to use a tape measure correctly is an option to be considered. However, you as the customer should have been made aware of this flaw prior to purchase. If not, then that shouldn't be your responsibility to correct right off rip. Maybe only as an option for consideration after exhausting your resources & communication for replacement or refund is finished. If bought brand new from any reputable company or custom builder this bullshit shouldn't be reality nor your worry or stress... IN MY HONEST OPINION