100% agree with Denny. Forget ratios, focus on concentrations. A ratio is just a byproduct of the concentration anyway. While the example in quotes above actually uses the concentration values, they are technically both 3:1 ratios but will produce significant differences in the final beer.
As for how chloride and sulfate will affect your perception of the beer, it’s not about sweetness vs bitterness. It’s more along the lines of fullness vs dryness. Chloride does not make a beer sweeter, however it does increase a perception of a fuller (bodied) beer, and since it doesn’t enhance the dryness then it may be perceived as “less dry” which folks might construe as “more sweet”. A similar but opposite thing happens with sulfate where it enhances a dry finish which has the potential to increase perceived bitterness, and in turn reduce perceived sweetness (but that takes decently elevated levels in my experience). Some similar but different explanations can be said of sodium and magnesium as well in regards to perception of enhancing flavors and increasing minerality and/or bitterness. And, no, reduction of sulfate/chloride to low (but reasonable) levels does not make a bland beer or increase blandness.
Thanks for your input. Ive been reading alot about this lately and my understanding is exactly how you explained it above. I have made a minerally overly smokey stout before, and i want to avoid that again. I think my biggest mistake last time was a mash pH of 5.2, I believe that is what caused the smoky ashy flavor.
With that said, this time around I will be using a higher pH 5.5-5.6 and going with what i feel is a “ratio” that will help enhance both body and a dry finish. 80s04/60Calchl ppm.