Noonan's book on brewing lager beer recommends adding fermenting yeast when the beer is racked to secondary. The process described calls for unpitched wort to be used along with active yeast from the primary fermenter. I completely forgot to keep any wort from the batch after I pitched for primary.
Would it be possible to make a yeast starter just like pitching for primary and pitch it for the secondary? I would use the same yeast strand as what I used for the initial pitching. I'm concerned about the amount of yeast cells being too large if this is done, as not as many fermentable sugars will be available to the yeast during secondary. I usually use the Activator Wyeast Lab packs (the larger of the two offered). Would it be advisable to pitch directly from an activated Wyeast pack instead of making a starter?