metalhead, I was wondering what the deal with that tank is, why does it sit so high at the rear? Is the tunnel so tight that it won't fit around the frame even with the coils out? The tank looks shorter than the stock tank ,will you be able to slide it back down the spine to get a better fit with the new seat?
I ve heard of guys beating the hell out of the tunnel to get it to fit, not a fan, if you only needed a little more room inside you could try leaving the cap tight and shooting some air up the petcock., sounds painful right.. but if only a bit more clearance is needed I have found the air will spread the tunnel wider. of course no telling how much air it can take before bad crap happens . I make it breathe like a set of lungs, fill ,release fill , release... check spread and so on. normally this enlarges the tunnel in the front of the tank more than the rear depending on its rear mounting construction. I have not buckled a tank or had one blow out yet, so I can't say if I'm just that good, or stupid and lucky , but it has always worked for me. Thought I would throw that out there in case another tank is fixin to take a beating. To squeeze the tunnel tighter, ratchet strap it with ratchet over the tunnel , the strap doesn't leave marks .