I was just looking at my ride from yesterday and noticed that if I turn the elevation correction on, (Which uses professional survey data instead of the altimiter in the 705), That my climbing numbers are WAY different.

Here's the ride.

http://connect.garmin.com/activity/77661566

According to my 705 I had 3389 feet of climbing.

If I turn on the elevation correction, which I think would be more reliable, I had 4615 feet of climbing.

This is my second 705. The first one I got from Garmin the altimeter didn't work brand new out of the box. Wondering if they are not very accurate for this.
Which one is right?