Are there supposed to be gaps between the center tracks?Updated 22 days ago

Yes, there should be small gaps between the center tracks. This gives them just enough wiggle room so that installing the last piece isn't a horrible ordeal. Once installed, the center tracks can be slid side to side to adjust for the next part being inserted, and once all are in place you can shift them as needed to even out the minor gaps. Gaps are typically wide enough to slide a coin through, but should not be big enough to stick your finger through. Once the traction pads are applied, you won't even know those gaps are there. 

With that said, if all center tracks are in place and you've got a gap big enough to put a finger through (even after adjusting and spacing the parts out), please send a photo to us at [email protected] so that we can take a look.