I really like the towels I purchased from Pak Shak to replace my aging paint/"good towels". AG/Cobra (for me at least) started to become hit and miss. The towels seemed soft enough but I was getting an unacceptable amount of linting from the new towels I was ordering from them. ....several Shamrocks (which they don't seem to carry anymore), 530's, a batch of waffle weaves (no lint but they simply won't pick up water and seem more repellent than absorbent) and even the new teal general purpose towels I was receiving (that had always been fairly consistent) were shedding. In fact, with my teal towels, you can actually see a difference between the ones I had received over time which leads me to my next point....
Wherever you decide to purchase your towels from, I would encourage you to buy sample quantities first. If there is one thing I have learned over the years is that MF's can change from batch to batch and depending on the source, they can be quite inconsistent. I got burned too many times with the AG towels that even though they may have changed their source/lineup, I doubt I will even buy another towel from them unless I'm really in a bind to try a new supplier. As it stands right now, I have been happy with the MicroPaks from PS I bought as "testers" almost a year ago and even the latest batch I received just a couple of months ago. ....I will be ordering a couple dozen more in the coming weeks.
I'm quite a creature of habit myself so unless PS changes their formula, I may be sticking with their lineup of MF's until I simply must change. ....that's not to say there are not similar or better quality towels out there however. I just don't have a reason to try or switch to anything else at the moment.