Those Zinnet guys were wishy-washy about the 950As so I don't know if they'll make any more or not. Could be they're trying to clear out inventory of the old stuff. Could be this will be the end of CECBs for Zinwell. Could be the 970As provide them higher profit margins (lower cost to produce, cheaper parts). Does anyone find it fishy that the newer model has a lower model number? I've seen this with other CECB mfgers (ex: APEX) which I suspect is a marketing trick to help clear out the older models. Anyhow, I'm afraid if I wait on a 950A then the prices will shoot up as we approach the 'new' deadline like last time (I paid $57 for a 950A and a few weeks later it dropped to $45 right before they disappeared (Solid Signal, 970As are now $47)). Have you guys observed any quality/performance differences between 950As and recent 970As, esp in regards to reception (tuner) and pic (decoder)?
On the antenna issue, the stations are predominantly UHF with just a few venturing into the upper VHF band. UHF is more sensitive to weather (moisture/absorption band). Where I live (north TX), in the springtime there's more cloudiness in the morning. Those indoor antennas make the effect more pronounced and sensitive to your body movements and other indoor interference. I have an attic antenna and don't observe any of this but when I first hooked up to an indoor antenna it was all over the place as I moved around. You can find out what the low and high freq stations are in your area (antennaweb) to do a comparison experiment; try to use ones from the same tower/direction. Be sure to switch to proper VHF dipole and UHF loop for each freq (crossover around ch 13/14).
Do you guys like the Apex boxes? I saw they were feature-rich but when I looked at some customer reviews on retailer websites there were a lot of quality complaints so I steered away. Also didn't make the Best Pic Quality category on ConsumerReports but it wasn't that bad (plus S-vid capable). The brand name rings a bell from cheap stuff in grocery/drug stores and Walmart, but from what I've read here Zinwells sold in Albertsons in some cities.