intarray index

Hello,
I have a question about IntArray contrib package. The docs says:
"...current implementation provides index support for one-dimensional
array of
int4's - gist__int_ops, suitable for small and medium size of arrays
(used on
default), and gist__intbig_ops for indexing large arrays (we use
superimposed
signature with length of 4096 bits to represent sets)..."

How many elements within single array is suggested within
small/medium/large array ? I have arrays with up to 200 elements - which
index I should use ?

Thanks.

ML