Thanks for all your replies.
I finally got the perfect configuration between the two lamps-- incandescent heat lamps, very spotty IMO. Too far apart and they were letting in the drafts in between. It's hard to gauge temp with my thermometers-- I think just by watching the chicks it helped me decide what is the right temp, even though the hottest spot registers 100 degrees. I have that lamp warmer, the other is a little higher and the hottest spot registers 90 on that side. I used cardboard and duct tape to make the ends a little closer in, and clothespinned towels on the drafty ends. There seems to be plenty of good places to warm up or cool down.
Now the remaining chicks seem more active, I think I've gotten through the worst of the initial deaths. One more splay-legged rock bantam (all bantams, but this one is tiny) His legs are bandaged and he's standing, but he languishes in his little quiet time box, but gets trampled with the others (15 others.) Last check he was warming up under the warmer side.
I am starting to calm down. I thought I was going to explode with stress cooking dinner. My girls were very upset with my distractedness and stress and that did not help. But finally, the lamps/temp. started coming together. Then I had to figure out how the outside cats I normally feed in the garage were going to get fed. Sigh! It never ends.
Well, first day jitters. I do prefer the hen method. I have two grand old Buff Orp dames who are reliably broody (boy are they ever!) We wouldn't have purchased chicks this early, but we need them for the fair in August. Also, this is why we are raising them as the hen-brooded chicks were not approachable--pretty much a requirement for showing.
Next time I'll have more time to look around here.