I use the butt section to balance the rod versus using the butt section to bury in my gut when a fish would run, frankly I've never landed a fish that caused me to do that. I like to balance my rods so my wrist doesnt get fatigued after hours of fishing, I dont have to 'fight' the rod to make it do what I want.
This rod does not have a reverse spine on it. Anytime I would reverse the spine on a rod is if I make a baitcasting rod, other then that, all the spines I make are on the belly of the blank(s). But, this is another reason why I like building rods, maybe the next rod I make I might reverse the spine and find that I really like it, that is the fun of building, finding that perfect recipe.