Have had good luck with FedEx air. I shipped some ADS M15s, which were about 120lbs per, (x2) and some ML Aerius, about 85lbs ea. Both went fine as far as I know. Using the original boxes is important, insurance helps. Have heard more bad things than good about UPS, so I tend not to use them anymore. Plus, if you do enough FedEx you can get a decent discount (40% off is what my company gets I think).
-Ed
-Ed