BG80 gives you a durability of 80 % compared to a benchmark; BG 66 is about 66 % ... makes compared to BG80 at 100 % a durability of 82,5 percent. 3 times a month is hard to answer, because i don´t know which month you refering to. winter months are known as hard times for the creatures out there and strings as well.
durability actaully means like how long the strings last till get "DULL" right? which strings u recommend me to use, summer play
durability in my term is how long the string last from being strung on a racket till it snaps somewhere.
i snap BG66 once every 2 or 3 weeks..but thats because i play like 3 or 4 times a week, and one of those sessions is 5 or 6 hours
Dear Daisuke, please ignore my first post... Most of all durability depends on the tension you use and your stroke (your technique and strength). Strung at lower tension your BG66 can last longer, but in my opinion you should string BG66 at least around 23 - 24 lbs. If you prefer playing at lower tension you don´t need such a professional stuff. I play at 28x31 and BG66 snaps often after one or two playing sessions, also depends on your stroke. Usually it snaps in the mains due to a single mishit in the top area. BG80 is slightly better in dureability, but also a very good string. I dont see much improvement changing from BG80 to BG66. If you like BG80 and have no problems with holding tension and durability i recommend to stick to it hope this helps
i personally think that even though a string might rate durability to the top of the chart... if you are a hard smasher, no matter how it it rated... they would happen to break easily.. unless you're more of a control player =)