Another thing to keep in mind is that the profiles of nearly all water supplies fluctuate throughout the seasons. You're using well water--the profile you've posted is pretty good for ambers and stouts given its RA. Not good at all for pale beers. I have no idea what the geology of your area is like but snow melt, heavy rains, droughts, watershed areas, underground springs, irrigation patterns, etc may all all impact the water profile throughout the year. Even my public utility (large metropolitan area) draws its water from underground wells and blends them and still finds fluctuations throughout the year.
If you want to brew lighter styles or be dead-on target with brewing certain styles for competitions, then build your water with known ingredients. I suggest RO water (I get for 30 cents a gallon at the grocery store) and brew salts. It's cheaper than sending samples to Ward Labs each time you brew. Just my 2 cents.