support main rune/masteries setup
i am a support main player, and i have rune and mastery pages set up for all different supports that i play. I have 19 rune pages and 20 mastery pages set up, and while a few supports have the exact same runes and masteries, and are then grouped to use a single page, i still have almost all of my remaining pages taken up by optimised changes for individual champions, this leaves me with almost no room for top, jungle, adc and mid pages for when i am required to fill those roles. I have a generic adc page (MR/AD/AS/Armour) and a generic defensive support page (Armour/MR/HP), a few of my other pages suit 2 supports each and the rest are all for individual champions which each have different setups. I have found a page (https://www.reddit.com/r/leagueoflegends/comments/2s5snf/cheat_sheet_for_rune_pages_for_the_2015_season_as/) which states good generic setups, however as a support main i don't believe 3/20 pages is enough to devote just to support champions, as i have a very large pool of support champions i often use. What is the best way to set up runes and masteries to allow a support main to have flexibility and freedom with a large pool of champions with well working rune and mastery pages as well as having enough pages dedicated to a decent number of champions for each other role?