Altho I'm only about 5% gray they are the same as the rest of my hair. I too like to take some temporary colors from time time and streak my hair with them right where the grays are growing out. I've got some bright shocking red that I'm playing around with right now.
Very basic hair wiki
In depth wikis

2b/3a medium/coarse semi-porous/iii
White Rain Ocean Mist GVP conditioning balm. Bioterra/LA Looks. Air dry. SOTC w/LOOB..I think its my first HG.
Experimenting with homemade recipes.