I think I have to disagree on one of Ur points (at this time )
Don't see how adding arm sweep (back) makes suspention stiffer .
It places more weight on front arms /tires thus making it feel like a softer spring .
Example . pushups .. Do pushups 3 different ways . arms strait out from shoulders (normal)
Arms more tward Ur stomack (hard ) ,arms out from Ur head (easy )"girl pushups"lol
This is why i have my idea about sweep