A higher rated player has a lot more chance of losing to a lower rated player in 1pt games. In a 1pt game a gammon or backgammon means nothing to the end result of the game, also a short game is much more at the whim of the luck of the dice. This is why you will rarely see the top players playing 1pt games at dailygammon or games grid, or playing them with a separate ID so as not to affect their ratings.
In multipoint games the odds even out a lot more, a higher rated player has a lot more chance of beating the lower rated player simply because of game skill and strategy.
With FIBS the lower rated player is rewarded for beating a higher rated player, but the higher rated player does not lose such a disportionate amount of points.
Here on the other hand we will see a similar thing happen as what happened at Goldtoken.
The top 20 players consisted of quite a few players (most) who would refuse a casual invite, most were non club members thus were not involved in random match ups in club challenges. Some only played 1 or 2 other players. It also allowed a player with only 35% (or was it 33%) wins to achieve the number 2 position simply because the games they won were against the number 1 player, who just happened to be a buddy. When the system was switched to FIBS and all games were recalculated some interesting things happened, players who had good win/loss ratios but had previously maintained a low rating simply because they played anyone, had a large rise in rating, whereas other players who had a high rating all of a sudden took a big drop. FIBS rewards players for winning, you will not simply get the large point gains by winning the occasional game against a high rated player...nor if you lose will you see your rating drop by 30-40 points at a time, only to find your next win is rewarded with 6.
Backgammon is a very different game to chess, it is extrememly popular, and is usually one of, if not the most popular game on any game site. Thus I personally feel it deserves to have the most effective rating system applied, this will become even more important if multipoint games are ever introduced to this site.