All pretty arbitrary:
\begin{code}
-uNFOLDING_USE_THRESHOLD = ( 3 :: Int)
+uNFOLDING_USE_THRESHOLD = ( 8 :: Int)
uNFOLDING_CREATION_THRESHOLD = (30 :: Int) -- Discounts can be big
iNTERFACE_UNFOLD_THRESHOLD = (30 :: Int)
lIBERATE_CASE_THRESHOLD = (10 :: Int)
uNFOLDING_CHEAP_OP_COST = ( 1 :: Int)
uNFOLDING_DEAR_OP_COST = ( 4 :: Int)
uNFOLDING_NOREP_LIT_COST = ( 20 :: Int) -- Strings can be pretty big
-uNFOLDING_CON_DISCOUNT_WEIGHT = ( 1 :: Int)
+uNFOLDING_CON_DISCOUNT_WEIGHT = ( 3 :: Int)
uNFOLDING_KEENESS_FACTOR = ( 2.0 :: Float)
\end{code}