SUT to MM cable? what should i get? cable mis-match

So I took thee plunge on the advice of some very helpful audiogoners and decided against the FR step up transformer. I decided to first try out an Entre ET-100 as it has inputs for 3 arms with difference impedence settings.

My question is this, having regard to the arms and cables i have acquired. I have a :

- HELIUS OMEGA with a silver cryo cable which goes from tags to plugs.
- FR64
- Moerch DP6
- Mission/Jelco
I have a few different cables available to me:
1. Nordost Tyr
2. Cardas Golden Reference
3. TCI
4. Townshend

What kind of cable do i need from SUT to mm stage - tonearm cable? normal shielded interconnect?

Silver or copper? - length? Any specific specs - ie low capacitance???
In addition to short and shielded, low capacitance is critical.  This is a high impedance node which makes it ripe for hum pickup and premature rolloff / phase issues from excessive capacitance.

If truth be told I want to give it a try and have 3 inputs from one device - because i have more than one turntable. My alternative was to by something like a MAnley Skipjack - which remains an option. If i don't like it then it's not so costly and I haven't lost a penny.
lohanimal, you are confusing different impedances with different
TT's. Different impedances are meant for  cartridges with
different impedances. Say low ,mid , an high impedance carts .
Not for different TT's.  The switch on your SUT is meant to switch
between carts with different impedance. 
It alllows switch carts and impedenced
@nandric I can use one sut with three inputs for 3 arms that means 3 cartridges - i have one turntable with two arms and one with a single arm next to one another - they can use the SUT. I am a bit puzzled with how you think i made an incorrect choice given that amongst those recommended was an Entre over and above an FR. I did indicate that i wanted a multi input SUT, otherwise i would have just got a switch box