Last May, I arrived on the evening SQ flight around 7:00 p.m. with a visa in my passport issued by the Indonesian Embassy in Washington. Wound up about 10th or 12th in line despite overtaking probably half the plane on the walk from the gate to immigration. For the first time, I saw pax making it through the Visa on Arrival lines much faster than I did. Even when the Indonesians line started taking foreigners, it still took a while. Not sure what the issue was, and it wasn't a big deal, but smooth is not really the watchword at DPS.