[special-K]

The breaking point depends on use.I won`t notch a frame.I`d go to 6" with springs and must be careful with bottoming,very little hauling with that.%,ok with not so much load.4",you`re fine.Many peoiple are just fine with thioer springs and are happy about the money saved.I`m switching to bags,eventually because my truck will haul and tow.That is the only reasons for bags for my uses.It`s definately a thing to consider that bags add a ptential for break down.Just like air shocks back in the day.I`d never rely on them like most did to clear L60s.i`d get the springs right and use air shocks to load the suspension or air down for ride.You blow,you can`t go.Springs you put in and forget about them.