upper control arm bushing notch's?

To straightlinespeed;
-Our A-bodies, from the factory, generally were set-up, and by design,with less than 1* positive caster and would often end up, over time, with less than zero caster. Well this tiny amount of caster makes them easy to steer at slow speeds. If that is coupled with an oem over-assisted steering box,then they are luxo-barge easy to steer, period.This may have been the hot-ticket in the days of bias-ply tires, or even polyglassers.This however, helps nothing for highway cruise stability, and may in fact lead to wandering and twichiness. Fast forward to radial tires,modern highways and a way of life that requires regular long commutes, and the oem settings are not anymore, the hot ticket. This is especially true of cars that are regularly driven.
-I used to be in the alignment business, and was allowed unlimited access to the equipment.If I told you how many alignments I really performed on my 68 Barracuda S clone, you might think me mad.The car was my DD for many years. I can tell you, from my experience, that the car is much more enjoyable to drive with 4* or so of caster,a modded less boost P/S box, and the bump-steer worked out of it. And yes, that includes low speed maneuvering, and at the big end, as they say.
-The offset bushings are a cheap,cost-effective way to get a couple of extra degrees, and start you on your way to a "better handling car", if you are already needing those bushings.
-Now, if your front end is in good condition, I certainly wouldnt advise you to rush out and get them installed. That would NOT be cost-effective.
-So to answer your question;"would I agree?" No. But, maybe yes.

And to mopar56; I have the 1.03 T-bars on mine, and they are definitely not too big.Even for a DD. Argue-ably they are borderline too small. Just MHO.