I will be transiting SIN on BA15 on my way to SYD later this month. OW Emerald / Traveling in First. It's been a while since I have been through SIN and the lounges have changed since my last visit. If I want to grab a shower during the short transit, is the Qantas First lounge a better option than the BA lounge? Anyone know how many showers are available or if there is likely to be a wait (assuming I'm quick off the flight!).