There are basically two types of shooters that use a Whisker Bisquit. Those who can shoot and those who can't. Those who can't use them because they keep your arrow from falling off the rest, and that's about the only reason. If you are basically a treestand hunter and can't keep your arrow on a rest then the problem is not the rest, but that you can't control the draw cycle of the bow as you draw it, which usually means too much draw weight.

Those who can shoot understand that a full containment rest (WB) can be less accurate due to the fact that it does indeed contain the arrow till it passes through. Therefore if the bow moves at all the arrow has to go with it. That means a good follow through is more important; not that it isn't important anyway.

Also to be considered is what your definition of accurate is. Pie plates at 30 yards is not what I or many others consider accurate. In fact not even at 50 yards.

Frankly, I'd say that if you have no clearance issues with your present rest you will gain nothing by changing. The biggest gainers will be the bow shop and manufacturers of whatever rest you happen to choose.