Thanks for the follow up dave. Here are test results from the last week and a half. Pool has been very consistent, save for the Cal., since I got Ben's test kit a few weeks back and actually know what the levels are at:

FC 3.5 - 4.5 (I target 4.0)
CC 0
TC 3.5-4.5
Ph 7.2-7.4 (I target 7.2 but am very careful not to overshoot...7.2 works well because it provides buffer against SWG pushing ph up)
Salt 3200 (just where I like it)
CYA 45ish (always tough to read with the black dot)
Cal 450 (was 430 about 3 weeks ago when I last tested it...thats why I say slowly rising. guess it could be constant and just a testing error. i'll know when I test again in a week or two...with levels that high, takes a lot drops to get the level, which means I'd have to buy more much sooner than expected)
TA 90-110 (I target 100 to buffer against lower TA due to constantly adding acid)

22,500 inground, plaster, 2 hp pentair for spa, 1.5 hp pentair for pool, solar, mini max NT heater, poolpilot digital SWG with the big cell (up to 45k gallons), 60 sq ft. pentair DG filter

As far as calcium rising, fill water (off irrigation line) is in the 190-200 range, and also use water from house to fill manually, which is at 10-20 range due to water softener. It is hot and I do have evaporation like everyone else, so even with using house water, the calcium would be expected to creep up. Even more so if it is off the auto-fill line (irrigation line). We do have some splash out, so that helps dilute somewhat, but I've got to believe I am losing more to evaporation than splash out, which means, to me, it is more likely than not that the cal level will creep up slowly.

My pool is also 9-10 months old, so that might help explain the high initial levels. Unfortunately, I didn't come accross this site but a few months ago, and the pool stores never tested for calcium, nor did the start up crew.

Never used Cal-hypo.

If it is the 'new pool' factor, I'd be inclined to ride out the high calcium level for a while longer. Anyone know how long I can expect the plaster to effect calcium levels...i.e. will it eventually stop pushing the levels up? when? Would then consider partial drain and refill. My pool company told me that I should not drain pool for at least a year after initially filling or risk damaging plaster. that means i've got to wait until Sept at the earliest (if I am to believe them ). Unfortunately, the house water is only good for maybe 500-800 gallons a day until it drains soft water capabilities, and then we are back on the irrigation line water, which is 190-200. That means I'd probably need to drain over 80% of the water (if calcium level is currently at 450 and fill is at 200) just to get the new water at 250. That kind of sucks. Oh well. I am not sold on sequesterants. At least it will be cheaper to drain and refill (and rebalance...that's a lot of salt and stabilizer I've got to purchase) than to buy a new SWG cell after it gets worn out by scale.