The mirror size is a calculated risk. You have a hard size limit imposed by the packaging. Optimal would be not to need it; I'll take a smaller mirror that works that will always be with me though, over a large one in my main pack which is a half mile away at camp when I do something stupid while getting water or wood.

I know we have folks from AMK here- any chance of sticking the instructions from the PSP in here? The ones on the heatsheet might not get found so easily.