i had to cut the back plate mount so that the down spout pipe could be attached so it fit up against the Spyderpops lower plate
yes, it was an ugly cut with a hack saw, but I filed and sanded down the edges to nice and smooth and that allowed the spout collar to snug up against the block off plate
I went to the local Harbour Freight store and purchased a motorcycle jack - made accessing the bottom plate SO much easier and I know I will use it alot for other mod installations