SNM, you have responded several times that the dumbell numbers can be entered "either way", as in one or two. The suggestion to use one dumbell is only given to "make the math easier", not because this is the standard or recommended practice in strength training. Can you PLEASE publish your INTENDED method (for both arms and legs, since some people do them differently right now)? If there is no "industry correct" answer, then just pick something for consistency. And also explain that anyone that does NOT do your preferred method will be skewing the Cathe Nation Average that shows up in Workout Manager? Or give people the option to not be included in the Average, knowing that they use a different method? (either by exercise, or all their numbers). OR...just get rid of the Average? It doesn't mean anything right now (for exercises that use two dumbells). Another possibility, while you are working on the next update to Workout Manager, is to specify right in the 1RM entry section exactly what goes in, i.e. "Enter weight of ONE dumbell".
I realize that we can simply choose not to look at the Average number, knowing the current misinformation it provides, but not everyone may actually know that if they haven't read this and similar threads. For people who suddenly find an exercise that isn't placing around the same range as the other averages, they could waste time trying to redo it (wondering if it was not done correctly), or even cause themselves injury.
PLEASE take a stance on this issue, so we can all get the use you intended from the Cathe Nation Average.