>While you're at it... long ago, I measured the if against assignment, and the assignment won... But that was back in VFP 5 or 6, so... can you compare this to your other measurements?
>
>

kcString = REPLICATE("a",100)
>a=SECONDS()
>FOR y = 1 TO 100000
>	lcstring = ""
>	lcComma=""
>	for x = 1 to 10
>	  lcString = m.lcString + lcComma+kcString
>	  lcComma=", "
>	endfor
>ENDFOR y
>?"create comma each time",SECONDS()-m.a
>

Here's one Gene Wirchenko from Foxite just sent me...

a=SECONDS()
FOR y = 1 TO 100000
	lcstring = kcString
	for x = 2 to 10
	  lcString = m.lcString + "," + kcString
	endfor
ENDFOR y
?"(Skip adding the last comma and having no if.)",SECONDS()-m.a

That seems completely workable, but my gut tells me it can't work for a do while loop. Can't put my finger on the problem.