So, if one were to buy a new autotune saw.....is there any type of break-in period after which an adjustment might be made to the carb. Not needed with autotune saw? Been reading up on this a bit and just curious how they might run out of the box. And without the adjustment screws on the side...what does one do? I guess the technology has been around for awhile, I'm guessing again that now it's a new way to promote the husq saws. Thoughts? Thanks.