I always ran low around 2800 and could never taste it. I overshot a little this year to 3200 and we taste it for the first time. Next time I’ll be careful to only add until the SWG is happy and then walk away like we discussed in the other thread.
Here's a little related trivia on this topic. My wife and I spent 6 years blue water sailing and water quality/supply became very important since we were mostly in pretty remote areas. The WHO recommendation was for potable water was 1100 ppm. Our on board RO water maker produced about 175. After years of this we couldn't stand any drinking water from the faucet due to chlorine and chloramines. Point is taste is a little relative and based on what you're used to. No pool water is really good to drink since most of it has over 1100 ppm salt so it's good that it tastes salty. We use an under sink RO unit to make our drinking water and it tastes great at about 15 ppm TDS.
I put salt in for feel. I could definitely taste it at 1800. So could most other people in my family. Now that it's about 2300, I can taste it stronger. Last year I had it at a lower level, and one of my daughter's friends said he didn't know we had a salt pool.
I definitely taste it. At 3k or 4k tastes the same to me. I have a goatee so i can't help but taste it as it runs through the facial hair. Tastes like sweat to me. Was in the ocean this weekend and whoa! Huge difference of course.