I have been vaping since the end of February, last cig on 03/15. Mid April I started having some problems and found it was due to the PG. Because of the PG sensitivity I am trying to avoid it as much as possible. I believe I read in one of the threads that a VG/distilled water ratio of 5 to 1 was a good starting point. Does that sound right even though the only PG will be what if any is in the flavorings? All hints and guidance for VG only will be truly appreciated.