Clamp or Weight Suggestions for a MMF9.1


I am looking for suggestions from folks who have heard this TT with a detailed MC cart (like a Lyra) and wall shelf (i.e. well isolated) played through revealing phonstage, amps and speakers.  I am looking mostly to make some of the older (and newer quick press jobs) sound as amazing as more uniform records do.  The specific nature of my request may sound a bit limiting, but sales folks out there have recommend a large variety of devices, but I have not seen anywhere that has reviewed clamps/pucks as say mats or other TT peripherals.  I have a cork/rubber blended mat, use a Record Doctor V, stylus cleaner and record brush.  Thanks in advance to anyone who has some experience to share.  
ryanvt
I second the Herbies mat on my Music Hall MMF5.  I could not believe the difference.  But it totally screwed up my Linn, so there you go.  
Buy one and return it if you don't like it.  
I have tried the Pro-Ject weight and that elevated the sound of some marginal recordings I have - details were clearer and bass tighter.  Still more listening to do as time allows.  A noticeable improvement so far.  Thanks for the inputs.