Comments about Bogen Imaging Bogen - Manfrotto Surveyors Spiked Feet f/ Monopods (fits all except 3006, 3230, 3231 and 3245):
Not what I had hoped for.
For professional, not personal(amateur)use. Just too darned heavy; but I imagine it would be very suitable for the purpose intended (e.g. as a professional surveying implement) but if you are just looking for some added stability for a monopod try to find another, lighter, item designed for the job.
Comments about Bogen Imaging Bogen - Manfrotto Surveyors Spiked Feet f/ Monopods (fits all except 3006, 3230, 3231 and 3245):
Great product. My one possible complaint is that the rubber tip from the monopod has to be removed to install it, making the monopod almost useless for indoor use. But, if like me you are a hiker, this makes your monopod great for use as a hiking stick combined with an invaluable photographic tool.