Not correct, it's not the physical record number which is important, but the physical position in the index order.

>I'd rephrase and say especially when the first matching record is far from the first physical record.
>
>>Especially where the first matching record is close to the bottom, LOCATE is immidiate, GO TOP can take a loooong time.
>>
>>>>Try to issue LOCATE after setting filter

SET FILTER TO ...
>>>>LOCATE

>>>
>>>Is this supposed to be faster than GO TOP?