My Sport Cub S2 has approximately 55 hours on the engine (yes, it's still barely broken in). On my takeoff roll at full power, I noticed the oil pressure led to flash "red" for a minute or two until I throttled back a bit and it returned to "green". Never noticed it before. Stayed in the green for the remainder of the flight even though I had applied full power several times. Is this normal to have a low pressure reading on takeoff?