Micromass has begun shipping reengineered Q-TOF mass spectrometers equipped with electrospray ionization sources, following its decision in late March to suspend delivery of its top-of-the-line Ultima series of Q-TOFs, the company said last week. While the resumption of shipments affects only the Q-TOF API electrospray instruments — not the Q-TOF Global and Q-TOF MALDI mass spectrometers — it beats Micromass’ original prediction of when it could resume shipping by more than a month.