Good point to bring this up.
I will let you know that not all RI's are created equal, and there are still plenty of RI causing bacteria out there that are still susceptible to Baytril.
The nebulizing of Aminoglycosides has also been going around for a while, especially in cats and dogs I believe. It has also been used with snakes for a while if I remember correctly.
I've had good luck with IM shots, but won't hesitate to try nebulizing stuff in the future. I'm still researching it at this point and time.
The only thing I don't like about it is that I wonder what the absorption rate is when stuff like that, especially stuff in the Aminoglycoside group. Gentamicin I believe it is is one that has a much more narrow window of safe therapeutic safety.