text: 10 
  
  out ﬁrst deriving the normal state self-energy microscop- 
  ically (this is what we will do in the next section). The 
  results of the calculations for the modiﬁed MFLI model 
  are presented in Figs. 15 and 16. We clearly see that the 
  behavior is now diﬀerent and ∆WK < 0 for all Γ. This 
  is the same behavior as we previously found in BCSI 
  and EB models. So we argue that the ‘unconventional’ 
  behavior exhibited by the original MFLI model is most 
  likely the manifestation of a particular modeling incon- 
  sistency. Still, Ref. 30 made a valid point that the fact 
  that quasiparticles behave more close to free fermions in 
  a SCS than in a NS, and this eﬀect tends to reverse the 
  signs of ∆WK and of the kinetic energy 43. It just hap- 
  pens that in a modiﬁed MFLI model the optical integral 
  is still larger in the NS. 