What is the most optimal gold gain in Silverwastes? : r/Guildwars2 Reddit
The tier of mats you get from salvage depends on the level of gear. 49 is the rec as the T3/4 mats are often worth more than the T5/6 mats (mainly as most people are salvaging level 80 gear which drops T5/6 mats). Magic find does not affect silverwastes bags any more, any guide saying that is outdated.