thats probably not shin bang, my guess is minor shin splints. Its because your shin muscles are in bad shape. Don't worry, most people's shin muscles suck. Take a lot of work to get them stronger since we don't use them on a regular basis.
And who the fuck said softer boots are the way to go, your a fucking dumb fuck, boot stiffness is dependent on the individual and what their preferences and bio-mechanics are.
If your a pussy with sand in your vagina who does not know how to skis, a soft boot might fit the ticket, but if you have balls you probably want something with substance.