From what I hear TI's are among the leaders in life expectancy, and you can expect the sound to be great forever too. With the tension they appear to have, it's hard to think that you'd break one...the Fender 9050 ML's I've used are a high enough tension that I have broken strings (on my J Bass, never the 4001).
I have been thinking of getting a set for my 4001, as the RW's on it right now really rob that bass of "IT"...the 9050's gave the 4001 "IT", but they also induced too much neck relief. So TI's will likely go on in several months.
I have a set of the 9050's that were on the 4001 barely long enough to lose their initial "twang", so I might try them on the Laredo...
Still so confused about strings.

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