do some producers do it on purpose?

[R2D2]

Sometimes producers move the beats slightly off of it's correct position to give the track more "swing" so that they sound with "human feeling" and imitate a live drummer. That causes inconsistent and not rounded tempos.

yep just like the good old Akai units

I just found a great refill for reason from Peff that gives you the Akai swing via the regroove mixer

absolutely love it

http://www.peff.com/journal/2008/02/...oove-template/

[BradCee]

I have it at 127.98bpm which is probably like .02 off lol.

think i'll throw that into mine and see, noticed after a breakdown that the beats looked like they were 1/2 beat off the grid...? might be the bpm