Some pictures for your perusal...
Gentlemen,
Many thanks for your suggestions and input so far. I would like to submit some pictures of the two dishes that might clarify some things.
First, here's a picture of David's SuperDish - the one that doesn't get 119.
Per Harshness, Dishcomm's and Icebergs suggestions, I wanted to verify to all of you that I am indeed connected to the correct LNB and aiming the LNB at the correct satellite. So, instead of messing with foil, I simply hooked the 301 receiver directly to the 110 LNB on the 105 Superdish, ran a check switch and looked at the results.
You can see that the receiver sees the 110 LNB, and in this configuration receives the local channels perfectly with signal strength in the 70's.
Now here's the view of the sky from Davids dish.
Camera was held under the feedhorn arm of the dish at close (best I could do) to the same angle as the dish itself. A few trees to the right, but a nice clear view overall. I'm getting great signals in other locations with far more tree blockage, as you'll see later...
Now here is the metal 105 Dish at Ed's that works perfectly.
Here's Ed's dish's view, taken (as best I could) in the same way as was David's.
Note the much heavier tree blockage - yet this dish gets 110 in the 70's and 119 in the upper 60's! Go figure.
Now check out this side image of Ed's dish:
Some have suggested warpage as the issue with David's dish, yet Ed's is the one with the dent in the edge, trees half blocking the view, and it works great.
At least these pictures will hopefully convince Timberwolf, Dishcomm, and Iceberg that I am indeed working with 105 Super Dishes, and that I am pointing David's dish at 110.
Any thoughts?
Thanks again for all you guys' help and suggestions!
Tim