I prefer to leave it in gear during coasting para if I need power, mabilis lang ang response ko. Also If I need some engine braking, malaking tulong kung naka gear.

Pag pababa ng mga slopes kahit na gaano ka maintain ang sasakyan, your brakes might still fail. At least for me may back up just in case.

Driving a manual and during an overtaking maneuver in a 2 way street, may nagsabi sa akin na do not change gear while you are at the opposite lane kahit na mag over rev. Kasi pag nagkamali ka ng pasok ng gear at may kasalubong, delikado. For me, this makes sense.