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Put a motor on it-
The Eskimo Shark Z71 requires no such tweaking! Bwahahaha!
Some people say have an extra set of sharp blades with you just in case (and a wrench to change them). Loctite on the bolts is a good idea as well.
Not a big one, buy I tape the Allen wrench to the shaft of my auger to keep it handy in case I need it and that has saved the day a few times!
Why worry about having to retighten, just buy a longer bolt and put a nylock nut on the other side, end of problems.
buy blades at the end of the year buy ahead for later years
Heat up the blade with a torch so it melts and cut the ice
My auger tweak If it works i will call it the nilscuda (Image removed from quote.)
Biggest problem I already see, your top hand should be directly over the blade, your top hand is 995 of your pressure, and not being centered over the top will make you tend to drill on an angle and not cut very well.