skull level and exp

[Hardcore Scape]

you can not tag 48s on a level 38 and get full xp. the mobs have to be at least green for the booster and red for the boosted. I think it happens in the low 40s where you can start doing this. I think I was getting my friend around 200k xp an hour helping him boost his rogue while I AOED on my 5 box, he used oil of immolation and dynamite to tag, it got easier the higher he got since tagging mobs is pretty hard in low 40s and there is a limited number of spots with just level 48s.