Sadowsky Standard flats and La Bella L-760FS Standard flats have the same gauges: 45 65 85 105. It's my understanding that both strings are made by the same manufacturer as well. Does anyone have experience with both of these sets? Is there a discernable difference between the two? I'm particularly interested to know if there's a difference in tension. I've been playing Sad Bright Nickels for the past year or so, and they seem to have slightly higher tension than comparable strings.