I've done without any type of parallel clamp for years. I've made due with some cheap Harbor Freight "F" type clamps and some Bessey Pipe clamps. Recently, I was fortunate enough to be in the right place, and was able to purchase one 48" Pony and two 40" Bessey Parallel Clamps for $25 total. Having used them a couple of times, I realize I need to invest in more of these. So, is one brand significantly better than the other? Are there other brands I should be looking at? How many and what sizes are most likely to work well for me?