GOLD MEDAL ATTEMPTS

BEFORE you summon for a gold medal:
...1. Find out all the requirements for the gold and the monster from here http://castleage.wikia.com/wiki/Monster_Medals
...2. Advertise (spam all monster chats and put a notice in this forum) and see who can/will help you.
...3. Give others who need the gold enough time to recharge (don't summon and then say it is a gold attempt).
...4. Stock up on potions and FPs if you have to in order to do the required damage.
...5. The best time is usually at the beginning of weekends, because players have more free time.
DURING the 24 hours of the gold timeclock:
...1. Spam all monster chats looking for late joiners and clicks.
...2. Find out who has joined and needs the medal, and who is there to help.
...3. WAIT! Don't kill the monster as soon as possible. Let all who want the medal get have time to get the required damage.
...4. Keep close watch on the clock and be ready to do much more damage than the minimum if needed at the last hour.
AFTER the medal:
...1. Thank all the heavy hitters who joined and helped you and others get your gold medals.
...2. DO NOT immediately summon another gold medal attempt on another monster. Players need time to regenerate stamina and energy.

I'm sure I missed something, but doing these things will give you a good start.