I can tell you thereare level 30 leve in Casa Del Sol (or howevers its spelled). There are 4 different leves, one of them with "Kidd" in the name has you gather off 8 nodes. Its the only leve that gives you a bonus based on how well you do. If you have good gear and food and use the +15% to gather on 7/8 nodes you should be able to get the 25% bonus repeatedly. However, the only level range I was able to do this consistently was My lvl -2. I.E. If you are level 32, set it to +0; if you are 35, set it to +3.