hi, according to the wiki (http://runescape.wikia.com/wiki/Evil_tree#Rewards),

"Players collecting the reward from a farming leprechaun afterwards will receive only half of the magical banking time.".

 

since i seemed to have unexpectedly low magical banking times when i collected my rewards from the leprechaun (as i did 100% of the time) I changed to collecting my rewards from the tree. i believe i get the expected amount of time chopping trees now.

Interesting. We need someone to confirm this the next time they evil tree hunt and confirm it.(unless you have definitive proof)Interesting though. I will have to check it out myself the next time I find a tree.

The time is less if you claim your reward from the Leprechaun versus directly from the fallen Evil tree. 50% sounds about right but I'd have to look through thousands of my screen shots to be positive.

Thank you for your submission,

 

You have been credited and a note about receiving less time has been added to the guide.