I have a Fatman front stub on my 50 Ply wagon. It has the MS2 dropped spindles and tubular A-arms w/coilovers. It rides like a new car and I haven't had any problems with it.
IMO..........alot depends on who's stuff you buy. I will always stick with a brand name when it comes to anything structural like chassis parts. I also do my homework and check with other friends who use chassis parts from all the different manufacturers.