I decided many years ago I would not play with a string I wasn't content to play with until it broke. I also decided I didn't want to string more than every couple of weeks at the most. I've found there are quite a few softer polys I am happy to play with until they break. I just broke a string this past Saturday and had to pull out the backup stick that had been sitting in my bag for several weeks untouched. It felt so close to the one I had just broke that the only difference I actually noticed was the edges of the strings being sharper.
I guess if you're so feel oriented that you have to have something like ALU that has a special kind of feel for the first 30 - 60 mins and you are willing to pay the money for it then it might make sense to string really often, but for a regular syn gut or typical poly or something, I can't see the point personally. Just find a string that plays decent until it breaks. Seems like a much simpler solution to me.
it's strange what you say. my younger brother and I (we are less than a year apart) and we have always played with the same rackets. (when we were 16 and 17 years old, our parents bought us a set of 4 identical rackets (L1), put two overgrips on him, and for me only one, and we thus played with the same rackets with the same tensions.
Even today we sometimes can interchange the snowshoes, we have voluntarily changed our strings and tensions, with some slight differences.
yesterday afternoon, I was at the club, to get some fresh air, and without my stuff. (I always have a pair of shoes in the car, but the snowshoes never stay because of the heat).
my brother and a couple of friends were playing together, and they were looking for someone for a double, so I took one of my brother's snowshoes, who plays prince lightning XX / max power kirschaum at the crossroads. I took a racket at random, whose rope barely broke after 5 minutes, the S-gut was practically worn. and then I took another racket with new strings. after 10 minutes, it played practically like the other string. (my brother breaks about every 6 hours), the kirschaum hold the tension very well, and for me, just before breaking the string was still playing perfectly well. (for the moment I cannot say because I play my rackets in an alternative way, all at the same time, (with a small notebook or I note the hours played, to be able to cut the line after 13-15 h, according to the poly ).
So, I fully agree with you on certain strings which once stabilized (after 15-20 minutes) becomes very stable in terms of playability and tension resistance.