Recycling scenario imposes important constraints on r-mode instability in neutron stars and thus on neutron star microphysics. Recent Ref. [1] concluded that ungapped interacting quark matter model is consistent with recycling scenario, including radio and x-ray data. However, this model leads to very high neutrino luminosity, thus high temperatures observed for neutron stars in low mass X-ray binaries can hardly be explained. On the contrary, our recent model [2] agrees with these observations, furthermore it is also consistent with neutron star cooling data, because it appeals to the same microphysical parameters as the minimal cooling model does [3]. Within our model, r-mode instability is suppressed because of the resonant interaction of oscillation modes at some internal temperatures ("resonant temperatures"). Here we demonstrate that this model agrees as well with observations of millisecond pulsars and provides observational evidences that the coupling parameter for resonant mode interaction at low temperatures should be rather large, in agreement with theoretical expectations [2].

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