Im not sure if any coffee shop is offering ace weed in holland. I have not been there for 7 years and im not in contact with their scene. Anyway hope you enjoyed your trip
Hi ACE stuff could be difficult to find in Amsterdam. It's mostly OG kushes, Haze hybrids, DNA, Barneys, Soma's etc and "whatever has been popular on the internet the last few years" and recent cup winners ofcourse. Sure there is also some of the old school stuff still and many types of hash, more and more "western hybrids/-hazes" grown in Morocco but most of these seem to be good quality ..there is Cheese hash, Amnesia Haze hash, some OG hash and so on.
Here's a coffeeshop forum ACD, maybe you could ask people over there about Bangi Haze. Have to joint to post. Nice site for coffeeshop and/bud/hash reviews; what's good atm-info; where to eat and what to do etc. http://www.coffeeshopdirect.com/forum/index.php
Here's another great site: Coffeeshop Menus. People send in photos of latest menus fairly often when it comes to the top/better shops. They have menus for few cities in USA also. http://www.coffeeshopmenus.org/CoffeeshopMenus.htm
Hope there is some ACE stuff in Adam, but could be difficult to find.