I found out a little more about your question... the ILap and Robotronic systems use a different "type" of IR system... the Robotronics being (from what I remember from the conversation) a solid beam and the I-Laps being a pulsed beam... the Robotronics requires having a tent above the bridge if the bridge is in sunlight or strong interior lighting, where as the I-Laps doesnt require that (I can attest to that 100%) and has no issues whatsoever with direct sunlight...

Most of our running is "practice" mode... so we all can go for laptime records... and we have it set with RC Scoring Pro to speak the laptimes over our PA... if there was a missed lap someone would definately catch it.