-snip-
back to where i was. I would still use two sides of the generator, as you don't want a full can stuck inside one waiting for the charge to deplete and another one trying to get in.
with the advanced insertion pipe there won't be any dropouts, but then you need to use the side to extract the empties. You will need an advanced wooden pipe also so that something is extracted(tested with normal wood on side and nothing comes out)
my 2 cents
I don't know if you've actually tried this, but I am not having any troubles with dropouts. If one will occur, it'd be very VERY infrequently. The reason for this is because as SOON as a fuel can enters the generator, it is pulled back out. It's only in long enough for the fuel to go into the generator. For there to be a dropout, two fuelcans would have to be traveling into the generator at almost the same time. This wouldn't be a huge problem for me because I only have 8 fuel cans in the system, circulating about... even with 8 full fuel cans meandering around in the system looking for a generator to use their fuel, they haven't run into each other in such as way to cause a dropout.
As for energy consumption, most of my "assembly line" (compressor, extractor, canning) is powered by solars hooked up to a batbox, thus the energy is free and needn't be taken into account. Only thing that DOES need to be taken into account is tin... which, yeah, isn't free, and yeah, I'm kinda running low on, lol. But, hey, you get 16 empty cells for only 4 tin, that's a whole stack (over 10 fuel cans worth of cells) out of only 16 tin. That means 16 tin is essentially equating to 260,400 EUs.
That is, of course, assuming my cactii farm can keep up with production once the factory is complete and fully operational, lol.