eric

Hector, The 12AB tap is the size of all the ski screws used in tech bindings. You therefore could use the tap for non metal topsheet holes. The downside is you can also more easily overtorque and strip the screws. The best way to keep top sheets from volcanoing is to make sure the top sheet is counter sunk enough to keep it from pulling up.

Robert, Fritschi Tecton uses pan head screws for the toe. With a 4.7mm shim you will need a 20.5 pan head screw. We should have some of those under our Ski Screws listing.

Tyler, Yes you can get a bigger strap but they are already fairly long already. It might be worth looking at your other strap and see how much overlap you have left to make sure you have enough overlap of velcro to hold securely.

Louise, The Blacklight 88 is lighter, slightly stiffer, and has a little bit more sidecut. The Radical 88 is slightly heavier with a damper core and slightly less sidecut. The Radical 88 is not quite as turny but easier to ski overall. It also holds its course a little better in chopped up snow as well. Both would used for similar terrain but the Radical 88 would pair with a beefier set up a bit better.

Caleb-We have not tried running with this pack. It fits pretty close to the back so it might work ok. You could look at this pack if you need a larger size pack for running.