Here just some numbers:
I have 166.837 Creds start
1.) slicing round (3compannions) Mission Cost: 3975, Mission gain: 4675
Creds are at 167,537, i made 700 Creds in 30 mins (oh yeah that's very broken ^^)
2.) slicing round (3compannions) Mission Cost: 3625, Mission gain: 6215
After two slicing runs ive got 169.827 Credits, all in all i got 3290 Credits in 1 Hour
I mean seriously why should that be broken in any way what so ever.
You can make far far far more money with any other crafting or gathering skill and the AH.
In my Point of view it's the worst of the gathering skills at the moment and would need between 10 and 30% more Credit gain at least, even with the occasional critical missions.