These are some data points I have collected during some shake down runs with my modified system.
I am not claiming anything other than I find the results interesting, they do not prove anything.
The no load runs were with the system complete and all parts moving.
The holding hands runs were with only the Sun gear installed.
The loaded runs were with an open TT motor using the 3:1 gear but the system has an initial step down of 5/6 then the 3:1 step up, or 2.5:1
Holding Hands
2V @ 0.41A to 0.47A
6V @ 0.58A to 0.65A
No load system run costs
2V @ 0.44A to 0.54A
5V @ 0.53A to 0.65A
6V @ 0.61A to 0.71A
Loaded system
2V @ 0.46A to 0.56A
6V @ 0.75A to 0.91A
Direct out
2V @ 0.58A to 0.68A
5V @ 0.59A to 0.72A
6V @ 0.59A to 0.72A
What I find interesting is that the 2V geared up RPM delivered to the TT motor is about the same RPM as the 5V direct out.