[DigitalGT]

I'd definitely take one. I wouldn't necessarily want a stronger tensioner spring but perhaps a higher quality one might be in order. Increasing the tensioner spring pressure WILL place increased stress on all the other pulley bearings. Maybe it won't cause them to fail but then again maybe it will. Belt stretch and eventual slippage is an inevitability. I for one would much rather replace a belt every 20K than bearings.

If a properly installed new belt slips on cleaned pulleys with a properly functioning tensioner, especially on a blower equipped car, then its not really the fault of the tensioner. More like the fault of the blower manufacturer or the installer.