Just a word of caution - if you are testing with strips instead of a drop kit, be very cautious about believing the TA on certain brands of test strips.
I use test strips on occasion - as a quick check when I've overslept and am hurrying like a mad to get to work, and even sometimes when I become a little lazy and I know my pool is in balance, I'll use strips during the week and drops on the weekend.
Well, I picked up some AquaCheck strips that always show my TA as almost nil and I basically always have a TA of 100 and I have to work to keep it that low. My fill water has a high TA.
I have another brand that work just fine, but beware.