The metal has to go somewhere, the bands will also be wider/ lube grooves will be narrower.

I like to size pistol bullets in lube presses with good dies I know to be round and accurate.  OTOH, if possible I like to shoot my bullets used for Schuetzen as cast on the assumption that they come from precise diameter moulds that drop round bullets.  This is my practice, YMMV.
Froggie

I almost never size bullets.  One experiment I did some time ago with sizing paper patched bullets by 0.002" showed me how easily they could be sized in a way that makes an unbalanced bullet.

I took perfect .446" smooth sided paper patched bullets and lubed them with rcbs case lube and ran them through a 0.455" Fred Cornell die, and then through a 0.444" Fred Cornell die.  Both are push through dies. I made sure to size them very slowly and gently.   The sizing operation leaves a polish on the sides of the bullet where its diameter was changed.  Maybe 1 in 10 bullets had the top part of the sizing "witness marks" uneven at the top of the bullet, meaning it was ever so slightly off center.

I doubt that you'd ever notice this with a grooved bullet, but with the smooth paper patched bullets I could easily spot it and cull the bullets.

The only time I ever size a grooved bullet is just so see if a rifle might show signs of liking a particular bullet from a mold that is too big.  If it looks promising then I order a quality mold that casts the proper size.

Chris.

.002 isn’t sizing excessive.Best to use push through type going nose first.If sizing more filling grooves with lube at as cast diameter will help band collapse and just lengthen bullet.