Ok, first I don't claim to know everything about suspension or "limiting straps". I realize that limiting straps are there to avoid over extending drivlines and shocks etc.
Contrary to what you said about limiting straps on my rig:
I do plan on running them and I do plan on running air bumps also.
My rig does not see a lot of air time yet. Randy is a friend of mine so I value his opinion. He is a master fabricator, won the TTC in 95', he pioneered extreme rockcrawling [along with his friends the Campbells] and is a genuine 4wheeler. Man, he even allowed me to make payments on my front suspension [for over a year]!
I asked him if they were necessary and he said it depends what I'm doing. I asked Rob Bonney [4 wheelers supply fabricator] he too said they wouldn't hurt but it depends what I do. Hell, I even asked the head shock guru at King Shocks and he said they are probably not necessary if I don't air the truck all the time.
But airing the truck is becoming more enticing so...I will likely get them. Everyone has an opinion on what is the hot setup etc. Fourwheeling has many "camps" of thought. It seems most guys think they know it all on the "messageboards" but when they own a business based on extreme wheeling, have established themselves as top fabricators in many venues and are actual friends of mine, then I will listen with more than a deaf ear. I choose to listen to guys that know fourwheeling and all the parameters of various vehicles.
As far as understanding them [limiting straps]... there is not much to understand. They limit droop of components. THere is such thing as too much flex. I found that out and got rid of the pieces of feces that allowed me to get too much. I'd rather lift a tire and keep going than flex to the moon and break all my junk.
I stand behind my experience with revolvers. They were cheap ways to get flex, true. They allowed me to get too much flex and allowed major axle wrap to occur. So I sold them to someone who likely will have the same problem.