ac tensioner flex

[sick1166]

2007 ls tahoe just put new belts and ideler pulley and tensioners on today fired it up and took a look I noticed that the ac tensioner is flexing up and down slighty at idle with the ac on ? Never looked before hand to see if thats what a stock one did.Yes its tight and the inspection before install it was also tight and smooth.
thanks for any help
drove 20 miles and ran great and ac blew cold

 

[taylorjm]

I don't know for sure, but do you think it takes time for the belt to get to a more round shape verses the oval from being in the package and production? One can only hope that after some miles and heat, it will take shape better?