6-handed limit general advice

[JPSmiley]

Ive been wondering if i should be playing 6-max instead of full ring. I have just started playing limit again and have had good results. I play very aggressive when i have position and try not to get myself in pots when im out of position unless i hold very good cards. Is there a big difference between playing 6-max and full ring, other than the aggressiveness preflop? If i am doing well at full ring is there more profit to be made playing 6-max and is it hard to learn how to play well? Shabi, you are the master, i need some advice