For example, doing the final part of the thorn bounty is L30, meaning sure you can hold your own, but you will be handicapped by about 20% compared to the 30 and 31.....now, you also should realize it doesn't scale up, so the 31 isn't doing necessarily any more dmg against an end as the 30...
English
-
The change in damage done is more in the range of 30 percent, and higher levels still get increased damage resistance I believe