Do your own logging. Define a permanent table to log the date/time start and end of select statement in the stored procedure. You don't have to log after every select statement. Binary chop through the routine until you find the select taking all the time. Add one log point in the middle, to find if the problem is in the first or second half. Then add another log point at the quarter point. Repeat 9 or 10 times, and you should get a result.