Experimental spectra for the monoisotopic selection and fragmentation of the YGGFL(H+) ion using argon as the collision gas (1050 ms pulse): a) SORI: time = 500 ms, amplitude = 2.0 V b) RE: time = 10 μs, amplitude = 120 V c) RE-SORI: RE time = 10 μs, amplitude = 120 V, 20 ms time gap, SORI time = 500 ms, amplitude = 2.0 V d) RE-SORI: RE time = 10 μs, amplitude = 120 V, 50 ms time gap, SORI time = 500 ms, amplitude = 2.0 V.