Hello, Eight months ago I overhauled a T&S movement from a Waterbury schoolhouse-style wall clock. It had a broken strike mainspring, which I measured at 3/4" x 0.0155" x 108". I replaced the mainsprings with new ones of 3/4 x 0.016 x 108". I replaced 9 bearings with Bergeon brass bushings, polished and burnished pivots, pallets, etc. and everything seemed fine for a test period. Well, here it is in the shop again - the 'new' front T2 bushing is shredded with big brass filings stuck in the blackened oil, and an egg-shaped hole. The other bushings appear OK, but the oil is generally darkened. Do you think this was a 'bad' or soft bushing? Or did I overpower the clock with the new springs? I am wondering whether to put in bronze bushings for the second wheel pivots, or to switch to 0.014" mainsprings. Or both... Thank you for any advice!