You may want to rephrase your question about the Malehanger and also include the Bibhanger hardcore, since they are virtually the same device. However, the Bibhanger is considered the original and imo looks more aesthetically appealing.
As for the Thickerman device, provided you apply a wrap to the base of your unit as per instructions, you will get a pretty good clamp going on. However, its nothing that the very inexpensive Cable Clamp won't accomplish. Also, the before and after photos on the TPD/MH website have been used on a few other enlargement product websites so...we don't actually know from which product those gains were actually achieved, if the photo is undoctored.