I'm not an expert for training at the lower levels, but I'd actually suggest something afkable like giant spiders, because you can browse forums whilst training. They do hit alot of 7's though, so bring monkfish (good low cost training food) and full rune. Rock crabs are wayy too crowded with cannons everywhere and people stealing your kills. For the xp at Pest Control, it's different, depending on personal stats, you get more xp per pc point with a 99 stat than a level 40 stat. You also get half xp for what you hit within pest control. Maybe you are confused with what pc USED to be like, there were no 'portal shields' that takes out the attack option, therefore you'd get fast games with lots of xp, which is now impossible. '18k xp + the xp from doing 50 dmg a time' - no, you were either given false info or misunderstood. Also, I am assuming you are around level 60, so do Lost City if you haven't already, get a dragon longsword and train that way. Although the dragon longsword is steriotyped to be a noob weapon, it's slightly better than the dragon scimitar although a bit slower, and MM (Monkey Madness) might be a little difficult for you.