Interesting discussion. I'm curious as to why so many select a woven braid, such as PowerPro. I find that it "sings" through the guides (especially when retrieving). And even though the "10/2" is supposedly the diameter of 2# test line, it's larger than what they advertise. Not a big deal though, if it's what you like and have confidence in.
Personally, I much prefer Fireline Crystal in 2# test size. It's about the size of 1# test mono (micrometer compared measurement) and is just as strong as most 4 - 6 pound test lines. Just as sensitive as any of the woven braids as well. The fused nature of this product allows it to flow very smoothly through the guides - coming or going - with no noise.
I religiously use (and highly recommend) a 4# test fluorocarbon leader with this main line and have experienced no ill effects having used this combination over the last 1/2 dozen seasons. Of course, I'm not pulling my jigs off snags very often up here, but the 2# test rating certainly would not disrupt a planted brush pile if you had to break off - another reason for the fluoro leader material, along with it's superior abrasion resistance.
The joint I've used, very successfully, is the Alberto knot. Which is not actually a knot per say; rather a braid of it's own accord. Works well for me. I can only suggest that anyone in the market for a braided line, give this set-up a try and see how it works for you. You might be pleasantly surprised.
"A voyage in search of knowledge need never abandon the spirit of adventure."