Ok here are my suggestions
1. I think you should put the main buffs back... such as Prophecy of Water/Fire/Earth
and Wild Magic...
2. Drops should be increased...
3. A grade by my oppinion should be sold unsealed... leave only S grade sealed...
4. Maybe its not a bug but where are the blessed scrolls of enchant?
5. There are no custom areas in GK (guess u know that very well)
6. Maybe put some hair ornaments?
7. Adena doesnt really drop when in party that should be fixed
8. Pets should be added in shops I guess, not wyvern or smething like that but wolf and hatchling...
Tell me which of those you agree with and which of those you disagree on