16x32 vinyl pool, 16,400 gallons. Current Alex readings: (waiting on Ben's kit to arrive)

CYA 151
FC 8.3
pH 7.5
TA 145
Total Hardness 274
Copper 1

Am planning to partial drain to lower the CYA - working on that plan now.

Pool store recommends using "sparkle up" to remove metals. Do I need to do that if the copper reading is 1? I've been using BBB for several weeks and my pool has never looked better. They also want me to use 2 qts of Pool Magnet Plus because the chlorine residual is 1ppm or lower. I don't see that reading on the list, so I don't know exactly what it is, but they say to use that and Chem Out to lower the residual. Seems contradictory to me. It also says to add 6.5 pounds of alkalinity booster. Just wanted to see what you experts thought I should do! Thanks!