you will get 50% more item xp on dxp weekend
so if it normaly takes 2 hours to get a level 9 in a weapon then doing dxp it takes 1½ hour.
as seyda said you don't get double xp or any sort of bonus xp on dxp.
blueprints and protean cogs gives 50% more xp then normal aswell.
you can augment alot of tools for skilling (fishing / mining / smithing / firemaking etc)
however fastest invention xp is by far combat training.
you may wish to google perks etc.
the higher your invention level is the higher chance to get rare perks.
like for weapons perk p4e2 (the best perk) average is 1000 attempts to get that one at level 120.
so at level 90 it would mostlikely be in 5000 attempts or so. but as we know with jagex it's all rng
but google perks for skilling and combat there are many very good guides really
https://rs3bossschool.com/articles/optimal-invention-perks/This post was edited by staking on Jan 28 2019 11:12am