this is a quote about Jesters from yeahitsdave:
1) more elastic travel from the jesters. will feel more secure in the binding, much more solid contact
2) wider footprint. having the wider mounting point will help control a fatter ski, more power to ur edges and much less likely to pull out of the topsheet.
3) shorter footprint. should be increased snow feel (which is guessing is part of the reason you wanted the lower lifter)
4) equal height heel and toe peices. puts ur boot in a level position for skiing forward or switch.