Just got back from the Mentawais last night. Felt the big earthquake on the boat. We shook for a good minute, and on a boat nonetheless. Most tour operators and boat captains say bookings are way down. I would say we were pretty lucky and surfed alone at least 50% of the time. But there were occasions when 4 or 5 boats would be present at any given time at the well known breaks (Macas and Lances). During those times it wouldn't be uncommon for 15-20 guys to be out in the water. Everyone was very cordial and usually waited thier turn. We usually moved on when there were more than two boats present at any given time. So to answer your question, the general consensus is that the Mentawais are less crowded so far this year than in the past few. You have to weigh your odds. With the location of the last earthquake being just off Padang, and the forecast for a bigger one in the same area, your talking about a possible repeat of the Tsunami in December, but the difference is that Padang and the Mentawais will be in the direct path of the Tsunami. With these recent events, and also having a family to support, there is no way I would go back until the situation stabilizes. If I were single without kids, I would be back in a heartbeat.