This tool is for all general purpose boards. Tip and tail variations within standard purpose boards are very important but they will not dramatically change the stance values or posted width values that are the intent of this tool. For those boards, this will produce values that are within 1 mm of actual. This will cover roughly 93% of all snowboards sold worldwide. Accessory boards, such as powder specific, fish, super elongated nose, etc. will be beyond the scope of this tool. For most accessory boards, the intent changes dramatically and a board which is wider than the foot is long may be advantageous. Float in powder over carvability. Wide trenching boards (less than 1% of the market) where eliminating any potential toe contact by increasing overall width is also not well covered by this tool.