So I got my Bad Dad extensions today. When I saw the fitment I was thinking I might have got in over my head. I have them sanded down and ready for my panel bond to show up. So my question is this, after bonding the bags and extensions together and some sanding, you just trowel filler in those big gaps? I went to the Bad Dad website and checked out the instructions, but you can't really see how big the gaps are in those tiny pics. Any help is appreciated. Thanks.