Re: Rod Spine...up or down?
Many places seem to say that building on the spine favors heaver, tougher rods, and building 180 from the spine seems to favor low weight, lighter rods.
The spine itself is the strongest part, and resists bending, thats why the rod will pop around it when you roll to find it. Think of it like you would your own body. Your spine runs down your back, if you wanted a nice smooth bend and to absorb a lot of pressure, you would put something in front of you and bend at your stomach. If you wanted a lot more resistance and and a less forgiving bend, you would place the object behind you, and try to bend backwards (granted, not too feasible for most humans, but you get the idea).