I think its time..

What's the manner of going about finding these bugs? Just brute forcing new content? Really neat video, thanks for sharing.

 

Seems we've taken it to Reddit!
https://www.reddit.com/r/runescape/comments/422n6r/prifddinas_dupe_650mhr_fixed/

I personally made almost 6.7k (AUD) which is around 4.7k USD. In total I'd assume we made well over 10k combined, but my former bug abuse partners and I are no longer in contact

Pretty much haha, to find the dupe we used a method we'd previously tried on the NPC who creates Ascension Crossbows. Using it on that NPC used to cause an instant DC, so we had a feeling the "I don't know it" button would prove useful sooner or later