In my experience of player I've boiled or cleaned strings with alcool many times. But the strings returnet quite well clean and good playing but than cleaned or boiled last less.
A friend of mine give me the reason, because the dirty and fat permeate tru rounds into the strings faster than it happens normally boiling or solvent cleaning them.
I've triet to let them dirty and fatted, not aestetically good but otherwise they are lasting much much longer, withouth repentine decays of boiled or alcool cleaned strings.
In My Honest Opinion
A friend of mine give me the reason, because the dirty and fat permeate tru rounds into the strings faster than it happens normally boiling or solvent cleaning them.
I've triet to let them dirty and fatted, not aestetically good but otherwise they are lasting much much longer, withouth repentine decays of boiled or alcool cleaned strings.
In My Honest Opinion