That's a good option, but it would also cause current servers to change their config (oh no!!1). 
 
Theoretically couldn't you just make this a "long long" type and therefore 64bits long allowing for over 18 000 000 000 000 000 000 or level 181,211 (given other restrictions allow)? 
 
P.S.- This is just an observation from a novice, but isn't level^3*3.1*1000 additional CPU cycles, rather than 3100*level^3, no decimal and less operations? 
		
	
		
		
		
		
		
		
		
		
		
	
		
		
	
	
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