Does anyone know if using an the zone 2 dish in Zone 1 areas actually makes a difference on signal levels? Wondering what the increase would be in Hertfordshire? I have always installed my sky, sky digital and sky+ systems myself, and never had any problems. a few friends even with sky digital often get poor reception in Rain, and who installed their systems, SKY. Secondly, when HD comes along will it be throught the same dish and fed from the same birds?