I think what you're seeing is not so much because the lift is asymmetric but because it has the low profile lift arms.
I have pretty much the same lift at home (and have nothing heavy to put on it).
The shop I work at has bend pak asymmetric lifts with both standard and low profile lift arms and when we put heavy trucks on the lift with standard arms they do not flex (at least not any way visible like the pic above).
So if lifting 8k+ lb trucks with long wheelbases, I should avoid asymmetric and low profile arms? Or are asymmetric lifts ok in that situation as long as they have standard arms? I guess I am somewhat confused.





