Starter+Starter= Starter^2?

[ChickenBeer]

The title is facetious, but I was wondering if anyone has ever added two starters together? same yeast same wort dimensions, only difference is one being further along than another. So say you made one starter 3 days later its good but not your not ready to brew, could you make a nother starter and toss the two together? I suspect that it would be fine just make more starter for you to pitch but in a higher gravity beer not a bad thing. This would also be for a 5 gallon batch and say the starter would be a total of 64 oz instead of the typical 32oz.

 

[BBL_Brewer]

If the starter is only 3 days old, just step it up another pint or so to boost the yeast and you'll be fine. By step up I mean add the new starter wort to the existing starter.

 

[ChickenBeer]

just to clarify, just add the wort no extra pitching required. Because the last thing i would want is an over kill of yeast.