I'm sorry, even after reading through the post 3 times, I see I stated my design incorrectly.
For the ravigneaux set, I plan to output from the ring and anchor the carrier! That is the way I have it drawn.
I am looking at design alternatives for a gearbox section that will need to offer one reduction ratio forward and one reverse. I know I can use a single planetary set to get the ratios (and directions) I need with a sun gear input, locking the carrier and using the ring for output (reverse) and...