3rz/2rz LCE Underdrive Pulley

Planning on replacing belts soon and figured I might install one of LCE’s Underdrive Pulleys: https://www.lceperformance.com/Underdrive-Crank-Pulley-2RZ-3RZ-p/1016107-k.htm
Hoping to hear what some of you guys that run them on your truck think. I know it’s not going to throw any crazy numbers, but even a small performance difference can make it worth it for me.
Also: If you’re running this, did you size down to a smaller belt? If so, what size?

 

Did you ever buy this pulley? I can't seem to find anyone with any opinion on this.

I did an underdrive pulley on my little dodge neon back in the day and the car definitely felt a little more lively, revved faster, had a tiny bit more oompf but ran into an issue with the aluminum pulley wearing out a little. Traded it in before I really saw any major negatives but I had heard if it's not well made/balanced then you can get bearing issues.

 

LC Enginnering - 1016107 -Underdrive Crank Pulley - 2RZ/3RZ | eBay

 

Yes I saw a couple options just curious if anyone has run one and what they think longer term?

 

Can someone volunteer and try it out.. for science?