I've decided to send the XS sights back. The 2.0 is really a point and shoot pistol. I decided not to pay $100 for the XS sights and another $65 to install. I'm fine with the stock sights at the range.
I'd rather go with the $165 toward another 2.0 when prices come down. One to carry and one for the range.
For now I'm staying the factory sights. I have drifted the front to correct for the POA/POI. It's very close to right on. I'll be at the range on Wednesday and do a couple longer distances up to 25 yards. I agree with spending the money on another BG2 - one for my RAT (Reliable And Trustworthy) carry and one for range/training/practice. For defense carry firearms I prefer they not see more than 2500 rounds. For my range/fun guns... I don't care how many rounds they see.