I think its better giving more adventurine/exp and less cuantity quest so that the poor guys who grind this (witch is insane) have a break to do other things ( benefits people who have very low time in there hands) but tbh in general the grinding for dragons take liek two week and if u complete all quest and if there the one with the highest reward( 24/7 grinding to complete all) witch is majorly cuantity over quality witch is not good in any game and its the most common thing in trove especially on repeated chaos mouts / untradables. Also starfire dragon has a similar problem my first frags was 5 month ago and i do my weekly sts and grind ults hards and normals like 10 time extra each week and still no frags.