Jon, I received the set of GHS Precision Flats (.045-.105) today. Since I had already put Thomastik-Infield Jazz flats on the Jazz bass that had the Brite Flats I put them on a 4 string bass P/J bass that had Fender Flat's (.050-.100) with a broken G string (had put a round wound in it's place). First impression they are nicely balanced (much better than the Fender's I had on it). The tension is a little higher than I am used to however I found it made playing actually easier if that makes any sense. I like these much better than the Fenders. The Fender strings Low E was much deeper sounding than the rest. This set of GHS Precision Flats are very balanced sounding string to string and have sustain out the wazoo. Initially they felt like they had Talcum powder on them which gave me some pause until I remembered a previous post to wipe them with alcohol. They now feel nice and smooth ( I used eye glass cleaner and microfiber cloth). The more I play them the sweeter they seem to get. Initially using a pick caused a lot of clack but that seems to be fading away now. My only real complaint has already been covered here in that the E string is a bit long but it really just is an aesthetics issue more than anything else. I wasn't going to write this until a day or two but they are breaking in quicker than expected. I have a practice session to go to Saturday and will let you know how I feel about them after that. With these strings I think my ideal set would be .050-.105. I am liking the .105 much better than I have on other brands. Finally, one last notable item. Until now only the TI Jazz Flats had a plausible URB tone when plucking the strings on or at the neck. The Precision Flatwounds do quite well themselves. I still love the Thomastik-Infield Jazz flatwounds but what you get for the money spent these are a much better deal at 1/3 the cost. Now if they will last anywhere near the 5-7 years of the Jazz Flats I will be very happy, even at 2-3 years