Nanoweb Light : Holy Grail for strings having long lifespan

Guys, think about you have 10 guitars, and you have to re-string them each month. I have to do it. It costs a lot of money (50 EUR/month) plus a lot of time. After reading good reviews about Elixirs I gave them a try. My experiences:

- high freq content of the sound will remain even after 6 month

- they are not breaking earlier than any other strings

- you have to take care of your instrument to keep these strings as long alive as can. I made a trial: the strings of one guitar were cleaned by clothes after 1 hour playing, an other was not. After 2 month the uncleaned strings started to become rusty, the cleaned string remained as fresh strings. So, use that cloth frequently!