I thought I had read somewhere here, but can't find the answer.
When using a triple convertible lens, seems I read that using the rear cell alone, that it should be moved to the front? Or was it when using the front cell alone, it would work better if moved behind the shutter?

I have not shot this lens yet, but as stated, seems I remember a thread about lens orientations. Does it make a significant diff?

(Don't guess it makes any diff, but lens is nameless except for "symmetrical convertible" on the lens, mounted currently in a Conley Safety. FL is approx. 12/18/24 judging from bellows draw on a Conley View. Doesn't cover 8x10 wide open, but covers 5x7 nicely, with room for a little wiggle.)