Well, in a way you can add flashy glow effects to them in SFC3, it just seems that modding SFC3 is a little more difficult, and although the SFC3 models are compatible with SFC2, their hardpoints do not work in SFC2. But there are glow features in SFC3. I will say simply that I prefer SFC2/OP over SFC3, and like SFC1 for the sake of nostalgia, but I won't go into why I don't like SFC3 and prefer the other because I wish to not start an argument, but to state that you can make similar glowy effects for SFC3, however they might not be as what you wished.
Still... I enjoy your work. Lets keep the thread on such subject. I sort-of edited my message up there quickly to add a little reccomendation incase you missed that. Just trying to help out in my own way.