Thanks IFS, found it last night I did go into
Palomar airport to pick up a Piper Lance for ferry back to MYF. And by the way did a few trips into your airport, had a few meals in the local Denny's just outside the airport
AirScream, sloping runways can cause illusions in altitude judgement when coming in to land. When the runway slopes away from the touchdown end of the runway, your visual cues tend to make you come in high and long. If the runway slopes towards the touchdown end of the runway, then your visual cues tend to make you come in lower than you should, with the chance of landing short of the runway.
Secondly if departing from the downslope end of the runway you will expect to do a longer run than normal!!!
Hope this helps, enjoy SUN

Diego.
Regards
Zazoo