Well I wouldn't recommend sending it back for a refund personally, unless you needed the money. Not because of the 'good things come to those who wait' BS.
I look at it like this, I dont need the money, and the rifle is a decent enough investment, so If the rifle goes through to many changes to where I don't like it when I receive it, I will sale it for MSRP + a percentage on the 2/3 cost of the rifle. Probably 12%, that is what my retirement has been getting me for the last year.
Thats what I WOULD do if I decided to get rid of it. Not likely.