Unfortunately @triskadecaphobic, it is likely not your cartridge that needs to go, it is your Linn phonostage that needs to go. It has a non adjustable 150 ohm loading in parallel with a fairly useless 4.7nF capacitor (which does almost nothing except short our very high frequency noise). If you buy a different cartridge you could very well end up at exactly the same place.
This is not an advocacy of extremephono products, but it is a good little article on cartridge loading. You can see how even for an MC cartridge, the frequency response can be affected by loading. This will vary cartridge to cartridge and I feel these graphs are more the extreme:
http://www.extremephono.com/Loading.htm
In the past I bought these pass-through RCA units with a little circuit board in them you could put parts on them. Can't remember where I got them, but that is an option. The Linn has fairly input impedance so these could be used as an adjunct.
This is not an advocacy of extremephono products, but it is a good little article on cartridge loading. You can see how even for an MC cartridge, the frequency response can be affected by loading. This will vary cartridge to cartridge and I feel these graphs are more the extreme:
http://www.extremephono.com/Loading.htm
In the past I bought these pass-through RCA units with a little circuit board in them you could put parts on them. Can't remember where I got them, but that is an option. The Linn has fairly input impedance so these could be used as an adjunct.