(Bleve @ Jan. 30 2013, 2:51 am)
There's a Yahoo group called Traildog which would be a good place to ask and research. I believe there's even some product development people from companies like Ruffwear among the group. I personally have an older Mountainsmith that's worked okay. My wife has an REI that's also okay. Ruffwear is considered one of the best as well.
Thanks I'll definitely look into the group.
Within all of my research last night, I came upon http://wolfpacks.com/ which seem amazing. Lots of innovative ideas from this mom and pop company that's been around since 1981. I like the idea of the compression strap being horizontal and not vertical, so it shifts the weight onto the dogs shoulders which is the strongest part of their body.