LMT Migration

[AK]

At present we have one tablespace containign all indexes . Some indexes are big  in size some are small . Currently tablespace is dict managed. This tablespace currently highly fragmented . Now I am planning to move the indexes to a LMT. Now how to decide what should be the extent size for uniform extents ? What is better approach to divide indexs  A )  should I devide them that based on size ( big, small ) and create seperate tablespaces with different values for extent size . b)    or seperate them based on modules sooo that accounting and manufactring related indexes goes to different tablespace.   Does number of extents is a performance issue in LMT as well ? Any experience ?   Thanks, -ak