I've always been told by tranny shops & other fast American car (muscle) guys tighter shifts are better on the tranny too.
For those of us that don't really know Exactly what you did, it would be cool to post a brief how to w/pics.
Then keep us posted on the medium/long term results.
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2001 Limited 4WD - 346+K - SunfireRed\Thunder Cloud; - 265/75/16 Michelin A/T2s - Fat Pat's 1.5" BL - StopTech ANGLED rotors - In series 699 trans cooler, New Yota1 transmission, All new OEM suspension front to rear.