>>>But I prefer to use hexadecimal value that will always result 4 bytes length.
>>>
>>>

>>>m.lcNewID = SYS(2015) + RIGHT(TRANSFROM(Application.ThreadId, "@0"), 4)
>>>

>>>
>>>What do you think, sir?
>>>
>>>
>>>Regards,
>>>Onytoo
>>
>>You are only creating the name of a variable, so the difference will be zero.
>
>Actually, one: one byte per key value.

My point was that the length of the variable itself, should have close to no influence on the result. And by result I mean the processing time.