I would like to see some back to back climbing number with cadence, heart rate, average speed and time with a 32T Round and 32T Oval. I think that would help answer the question most people want to know, is it faster with the same effort, same speed with less effort, slower or the same.
I think you would have to do the same climb a few times with each set up and then average the numbers and compare the averages in each category. I've seen a few reviews on the oval rings but no one has provide this type of data.