Interesting. Thanks.

So here's maillotoplis' quote from one of those threads "It's not really a Garmin issue, because the barometric adjusted Garmin data run through Garmin training center is pretty spot on - consistent with my old HAC4 data for the same rides and with other people's Polars, etc. "

But my GTC numbers seemed WAY off - so yeah, I'm confused.

So, not wanting to rehash this clearly long-running debate, has anyone found that the Garmin Connect is particularly problematic? From what I can tell, it's more accurate than the GTC, but that's a guess on what I thought I did yesterday. It seems that others have found GTC to be accurate, but I can't seem to find anyone using garmin connect or commenting on the elevation accuracy.

My 305 is the Edge, if that makes any difference.

Off to google again...