Let me first say that I really appreciate your desire to grow using different techniques every time. It keeps things interesting. I am from the same mold but don't have the space and don't know what I would do with the bounty.
As far as the "less is more" approach, I would like to offer some alternative concepts and some numbers for consideration and comparison.
As far as better air flow for less mold potential, I have some thoughts on that as well.
More nodes equals more buds, I agree 100%. My nodes are 1 - 1 1/2" apart.
Better air flow decreases the chance of mold, I agree 100%.
90% (or more) of the water being consumed by the plant is released into the air by the leaves, transpiration. My grows average 82* F and 43% RH so they go through a lot of water/solution, a couple of gallons per day. By removing the leaves in the "bud" area, I am removing a very large source of water vapor from the area around the buds. This also improves the air flow through the bud area and reduces the potential for mold and/or mildew. I measure the RH at "skirt level" and at canopy level. Skirt is 54% and the canopy is 42%. I use a couple of directional fans for circulation and have not seen any signs of mold/mildew.
As far as "choking the canopy with tops" preventing lower growth development, these lower buds are fully developed to within 5" or 6" from ground level.
Less is more. Here are some numbers from my past two grows.
Panama photoperiod, 100% Sativa grown prior to adding additional side lighting.
Jack Herer auto, 70% Sativa with additional side lighting.
Here is a Panama cola when it was newly removed from the drying box. The average length of all colas was 8" with a 1 1/2 - 2" diameter. The goal is to harvest 100 of these.
All yields are weights taken following manicuring, an 8 - 10 day dry, a 14 - 16 day stabilization (daily in/out jars with Boveda), and nug removal from stems. Ready for long term storage/cure.
Strain Size Yield
Panama................24" x 36" x 24"h...................411 grams (14.5 oz)
CST...................... .537 sq. meters....................740 grams / sq. meter
Training................6 sq. feet..............................68.5 grams / sq. foot
..............................12 cubic feet........................34.25 grams / cubic foot (important number for those of us growing in confined spaces)
Jack Herer..............24" x 24" x 18"h..................287 grams (10.12 oz)
............................ .371 sq. meters ..................773 grams / sq. meter
Skirted CST............4 sq. feet.............................71.75 grams / sq. foot
Training................6 cubic feet.........................47.8 grams / cubic foot
It appears from the numbers (grams/ cubic foot) that your thoughts on opening up the canopy to increase the yield from lower sites are accurate. That was one of the main reasons for me going to a "skirted" training technique.
I would love to see comparative numbers from other grows and techniques. There is always room for improvement, and experimentation.
P.S. For those that don't train an auto, this would be a good harvest.
For those that want to spend the time, the rest of the picture ......