Everything you have mentioned is 100% true when charging the batteries and I can see why the LVC would be important. When I am done charging, I do check the voltage of both packs before they go into the plane. This is more need for a volt meter, not a Prog-Box. I did have a pack not charge fully, at the Worlds during practice, and having known this before I flew, I adjusted my flight time ( 6 minutes ) and then cycled the packs after I landed. This probably was backwards from what should have been done ( cycled first, then flew ) but I knew the battery would have to be discharged one way or another.

I'm not sure I agree about not needing to set the controller up at the field. When Sean and I did testing and final set-ups, they were done at the field. It is nice to be able to try new set-ups while at the field and not needing to wait until you get home to change those settings. The USB port is a great feature, but I am not in on the meetings that Hacker and Jeti have as to why they do not do this. I do feel the Prog-Box, even at $40, is not that expensive and is worth the 1-time investment. It may not be that way to everyone, and I don't expect it to be. For the pilots using more than 1 Hacker, it's perfect for them, for the one's that only have 1 Hacker, it may be a bit of a burden for them. Unfortuantely, not everyone can be satisfied.