I'll arrive on SK939 this Sat 17/6 at 12:15, continuing with UA531 at 14:15, with through checked luggade. I see airside tunnel has opened between TBIT and T4-8. Since I'll be going to T7, will it be any faster to pass security into airside at TBIT and use the tunnel route than to go landside to T7 and pass there? Landside seems like a more direct route.