How did you integrate them with the rest of your holdings? ...
@samclem, I can answer your specific questions only indirectly but I will try:
More than most investments, I think the parable of the blind men and the elephant applies to TIPS. You and most others are touching the investment aspect. I am touching the insurance aspect. Here's our story:
When we retired (in our 50s) we were mostly in equities and it was our judgment that we probably had more money than we would ever need. The only risk to our retirement, we felt, was high inflation. In risk management lingo, this was a low probability, high impact risk. So the next step in risk mamagement is to look at the cost to mitigate. If the cost is low, it's a no-brainer to mitigate. For us TIPS were the answer.
In 2006, we put about 1/3 of our IRA money into one issue, the 2s of 2026. This were the longest bonds we could get and had the lowest coupon. The total amount was, we estimated, enough to inflation proof a frugal retirement if the SHTF. From that point we basically forgot about them, living our lives out of the balance of the portfolio.
Luck is frequently mistaken for skill, so when interest rates went to zero, we looked like geniuses. The TIPS were worth around 50% more than we paid. In 2011/12 we did succumb to a little greed and sold a few, but at that point we were 5+ years closer to pushing up daisies so, we rationalized, we did not need quite as big a stash.
We still have most of those TIPS, though we have started to reduce the position slightly as our planning horizon is shorter. Cost to mitigate? Really, zero. Our heirs and charities will get a little less, but they will never know it. Even if I do look at the yield hit from this strategy, I look at it as paying an insurance premium. We have fire insurance on our home, too, and pay an insurance premium on that. But buying insurance doesn't mean we want the house to burn down, nor does owning the TIPS means we are wishing for high inflation. Indeed, its the opposite in both cases.
Viewed as insurance I think the only sensible TIPS position is to have enough to protect a tolerable retirement lifestyle for the long term. Small positions in TIPS really come from an investment view of the elephant and I'm not sure they make any sense at all.
HTH and, of course, YMMV.