Hi Jayyj; thank for the reply and the information.
I initially tried 42-30-20-13 gauges on my tenor for GDAE because that was suggested to me, and because they are the gauges that are used in the Pearse tenor guitar set made for GDAE tuning. Also, it's 'in the ballpark' for the gauges suggested on the fine 'Tenor Guitar String-Tuning & Gauges Chart' on the Ry Cooder dot nl site. Looking at that chart now, I see what you mean about maybe going heavier on the G string. However, I really like the sound and feel of 42-30-20-13 on my Blueridge.
I've used the McDonald String tension calculator to determine the tension differences between common string gauges used for CGDA and GDAE. Here's a comparison of the D'Addario set and the strings I use for GDAE (singles from D'Addario):
* I found it very interesting that the larger gauge strings in GDAE actually cause less tension than the D'Addario set.
CGDA / GDAE string and tension comparison:
32W-22W-14-10 on 23 in 42W-30W-20-13 on 23 in
C: 19.38 # G: 18.39 #
G: 25.92 # D: 21.45 #
D: 20.35 # A: 24.02 # (19 gauge = 21.96 #)
A: 23.72 # E: 21.63 #
total: 89.37 # 85.49 #
* I just used the McDonald to calculate that using a 44W on the G string would result in 20.59 # of tension on that string. Using this, and a 19 on the A string, would make the tension across all the strings almost the same (+/- 1.5 # of each other).