Now you would say yes but whats the use because its incosistent which index map you get. Esencially you are farming both over there (in case you choose to do this get yourself a credit booster also).
You need 4 rare mods and idk how many credits to transmute in order to have higher chances for rare mods. By bringing a nekros near the mod drop chance booster you further increase the chance of gaining rare mods thanks to desecrate. Index wave 1 enemies have only rare mods in their drop table, if you chose this method always extract after wave 1 since in wave 2 some of the enemies have 50 endo in their drop table. The one I like to use it for (requires some skill to pull it off correctly) is index rare mod farm for transmutation.
There are 2 ways to use a mod booster, one described by another user which would be sedna grinieer arena endo farm.
