[djmtsu]

Very good point.

It doesn't matter how you go about preventing belt slippage, both the dual alt pulley and yoohoo belt work.

A side mount alternator will remove all belt slippage across the water pump pulley since the belt wraps around over 30% (around).

I have had the dual alt pulley on since I did my TII swap, drove it everyday for a year, been to Deals Gap Rotary Rally twice, and never have had any issues.

Unless you are discussing high RPM's over a long period (ie: racing) everyone is arguing a moot point.