Currently, I use a Boss LM-2B Bass Limiter. It is the discontinued brown model. It works OK, but I am considering trying to find a better limiter. I'm not looking for compression. I am looking for a limiter. If the box can do double duty as a compressor and a limiter, that is a bonus... but not a requirement. I use my limiter to keep my wah and filters under control. It keeps them from getting too "peaky" and kind of keeps everything even volume wise. I don't do much slapping, but when I do, I usually use the limiter. The problem with the LM-2B is that it doesn't have very much control. It has three knobs. Threshold, Level, and Enhance. The enhance knob is pretty useless. It sort of scoops the mids... I'd rather not color my sound that way, so it keep it dialed all the way down. The Threshold knobs and level knobs do what you think they would do... set the limiting threshold and overall volume. Suggestions?