I don't know anything about those shops in boulder. I think it is very hit or miss with fly shops. If you find a good one, grab it. Never let go and spend money there. A lot of fly shops these days are anything but. Most of the big, new, expensive shops are not very helpful in my opinion. They care more about selling $300.00 waders to some one day a year fisherman than offer advice or help to some one like me who might become a regular. Just my own observation, there are truly some great fly shops out there with some teriffic people working in them. These are the ones that need our support and more importantly our money.