I ordered my bow with speed mods, it arrived with smooths.
My shop swapped them out for me& I went home with the speeds installed and the smooths in a baggy.
After a week of shooting the speeds I thought the bow set at 61# felt just like my Patriots 65# pull. So I swapped to the smooths and awwwe, I soon found the bow I was after.

The smooth mods with just a touch of adjustment on the draw stop (over factory setting) and I was home.
Sure I instantly lost 8 fps, but it was energyI was willing to give up for the payoff of a buttery smooth draw that allowed some creep without yanking me forward.
I've never even once considered reinstalling the speed mods, they look good in my gear box though.

BTW the speed at 61 with smooths is almost Identical to the Pat at 65#.
My goal was a 400 grain arrow doing 270, the smooth Tributemet that goal.