MR4WD
ArboristSite Guru
I bet you also dump the old oil back into your truck when you have an oil change too.
HAHA! You're an idiot! Dumbest analogy ever award goes to you!
I bet you throw out your engine block when it's time to rebuild, rather than oversizing pistons and bearings?! LOL
For the most part bar rail closers are a sham. You're curving the bar in at the TIP only, pinching on only the part of the driver and chassis that's at the top and bottom of the bar. At least when upsizing in drivers (providing you have rotated the bar regularly and not let it eat tons of dirt) the driver should still fit evenly throughout it's height in the bar.
The chain is pretty much milling away at a bar it's whole life. Proper maintainence should let you uniformly upsize drivers as required through out the bars life.