hmm I guess so. It does seem the maximum upload slots is 50. I don't think LW 4 had any upload limits or perhaps it was 99. There's several things I never liked about LW 5. Edit: FrostWire 4 has unlimited upload slots it seems to LW 4 was no doubt the same.

I wanted to incorporate many of LW 4's abilities into WireShare but it became apparent BigJx only wanted to get the program to a bug-less state of LW 5 that could connect easily. I have been considering for several years doing my own version but still never got around to it other than compiling a slightly different version. I have a long list of things to do if I ever get around to it and am able to achieve it.