Low tensions for multi's??

Reading lots these days about players stringing their racquets at low tensions like 30lbs. Most are doing this with polys. Has anyone tried low tensions with multis or multi/poly hybrids? At the moment I'm using Technifibre NRG2 17 at 45 lbs and it's had a wonderful feel (at least for the first 15 or so hours until the strings seemed to go dead).

John Z.

highly depends on racket head size and string pattern... for me, low tension with a powerful multi mean 45lbs (in blade 93, 18x20).