Does drop booster affect raids? I thought only raids booster would affect that
And how does it affect raids and how do raid boosters work , do they increase the cap since u get often capped without the booster?
Raid Boosters - They simply increase the amount of points you get through various actions in Chambers of Xeric.
E.g If you gain 50 points for dumping 1 cavern grub in the thieving room, the points received will increase to 67.5(+35% boost).
This booster is very useful if you struggle to reach 8,000 points in Chambers of Xeric.
So to answer your question @Bigboxbob , no it doesn't increase the cap, but simply increases the amount of points gained.
Drop Boosters - I don't really know myself, but if I had to take a guess, I assume it simply increases the chance of getting a purple.
E.g If you take the 1 purple per 150,000 points I mentioned in my previous reply; If you complete a raid with the drop boost active, it will increase to 1 purple every 127,500 points(+15%).