Yes, I have the firewall off, and as you suggest, .074 seems to get more uploads.
I am only testing 0.752 as of today, so I need to watch it more to better evaluate upload trends.

The new bandwidth slider really makes a difference in allowing me to browse via Safari at a speed that is usable. With Acquisition bandwidth set at full ala .074, Safari took a long time while 'connecting to', but since the bandwidth control, it is way better for me, set at 50%.
So far I have only seen a maximum of 2 uploads at a time using 0.752, while .074 was frequently at 6.

I'm on a cable connect that is very fast.

For my money, while LimeWire keeps telling us to
'just wait until _____, then it'll really be good'
(you can fill in the blank with your favorite), while Acquisition is pretty darn good right now.

And if you post a legitimate problem to the Acq board, you can expect an honest answer, instead of the denial and mumbo jumbo from the LimeWire team that usually tries to blame the problem on the user and/or Apple.