I used a new vial of WLP 838 Southern German Lager yeast to make a starter and pitched it into a 5.2% Munich Helles. Then I harvested the slurry and held it in the fridge for 2+ weeks. I made a new starter and pitched into a 7% Helles Bock. I plan to do another 5.5% lager next, should I re-pitch the yeast after the 7% Helles Bock? I'm not sure what it's limits are, but 7% dosn't sound too high for a second generation does it?