Thank you very much for your replies and info. I have just over 400 products in store. The problem Im facing is that the owner is not using percentages that a good number of products will be sharing. Just the opposite. Most products have unique percentages of discounts.
For example, product A could have a $10 discount. Product B could have a $25.04 Discount. Product C could have a $2.01 discount. So when all is said and done I will have about 300 tac / calc rules that will have to be modified next pricing update. I cant imagine having 300 categories and keeping track of all the calculations as well.
So my procedure is to edit the product, see what the discount is, create a tax / calc, refresh the product page to reflect the tax / calc, apply tax / calc, then check appropriate overwrite. Seems such a daunting task compared to the override where you can just plugin the base price, sales price and check overwrite and your done.
It took hours last night to get through my "A" products and I already have 45 tax/calcs. Do you see how cumbersome this procedure is from my end?
I appreciate all the help and guidance you all have provided. I just wish there was a better way to apply these discounts. I know the owner is going to have a fit when I explain how to apply updates to pricing. Its not user friendly at all.
Final question, is the caution in using overrides due to them breaking at some point? Im still baffled as to why they worked prior to 3.0.18 update and now are broken?