You definitely DO NOT want to remove your side stand after intalling your center stand.
Think about the procedure for using the center stand... You would have to stop your 'Strom, get off while supporting and balancing the bike, manuever yourself into position while holding the bike up, and then lift the bike onto the center stand. Now, imagine doing this in full gear, after a 6 hour ride, in the cold, on a sloped/wet/gravel parking lot. In short, you WILL drop your bike... repeatedly!
The proper procedure is to stop your 'Strom, lower the side stand and dismount, lift the bike onto the center stand, then retract the side stand. (Notice no dropping of the bike involved.) :lol:
Also, from a convenience factor, since you can't lift the bike onto the center stand while you are on it, you would never be able to momentarily rest the bike on the stand while you are waiting for a fellow rider or anything of that nature.
The two stands are specifically designed not to interfere with each other. You will use your side stand more than you center stand by at least a 10 to 1 ratio.