Second, if you keep chains on an exercise for a while, your legs will be weak at the bottom, and strong at the top. In other words, they aren't going to help you with a static weight coming off of the bottom of your squat. If your body becomes accustomed to coming off your calves with 135 lbs, then it won't matter what the top end weight is.
I don't see how that could be. It's not like you're lowering the weight at the bottom. Any "accommodating" resistance is supposed to "conform to the natural strength curve". Given certain innate sticking points it can't always of course but that's the theory. I think probably if people are imagining weak legs it's some other accommodation to abusing bands that gives them problems out of the hole.
The bands versus chains issue may depend on your perspective and it may be more a question of efficacy over effectiveness. Chains may be superior for certain lifter under certain conditions but man, to say they are always better you'd have to take a lot of other things into consideration.
One, bands can be adapted in a lot more ways than chains. There is so many things you can use bands for that have nothing to do with fee weight implements and that goes beyond what you can use chains for which, in the end are just long heavy things.
Bands are much more practical for the average guy and about a million times less expensive, lol. In fact, when you say bands should be used in moderation that only really entails moderate use of one certain thing. You can pretty much always be rocking a band here and there for some thing quite safely and with few drawbacks. I mean, you might be using a band for palloff presses. Right there you have a way to do an exercise that a lot of people with home gyms can't do. And even may lack the right kind of pulley system in their commercial gym. You can use bands for all kinds of supportive "prehab" things..although I've grown to hate that word. You can use bands as finishers for hypertrophy work if you are primarily a low rep near maximal kind of person.
And you can carry a bunch of them in your gym bag! I could go on for days here…
I also think that there are a lot of pseudoscientific bullshit explanations about the correct and incorrect ways to use chains and bands that create of lot of problems with a tunnel vision that leads to overusing of quite narrow techniques. And I think that these explanations are "thought up" by people who want others to be dependent on them for mysterious and sciency sounding information, especially with bands. Bands are still just resistance at the end of the day.
Given all that I do thing bands are great and even as a single lifting implement they are fantastic. But I think bands and chains have equal utility, with bands being more practical and universally appropriate.
I appreciate your rationalizations of my rationalizations eric. :) I just want to see how this fits into my training…if it will fit, and how it affects my squat without chains. If I will be able to keep my elbows up better after working with a heavier weight on my shoulders…and being able to keep my upper body rock solid coming out of the hole…that is what I'm hoping to see…and if I don't then I will know from then on :)