I personally wouldn't use the lees. But that is my opinion only! This stuff is hard enough to get started, I'd rather use a starter and not have any problems. I used a half gallon starter made from apple juice. I reduced the Pee recipe down to using two bottles of lemon juice.

My recipe.

15 cups of sugar dissolved in 1/2 gallon water

43 oz. Lemon Juice

Water to make 3 1/2 gallons

1/2 tsp Tannin

2 tsp Nutrient

3/4 tsp Energizer

1 TBLS Pectin E

SG 1.090

Mixed one can(12 oz.) frozen apple concentrate, )white grape would probably be better), or your favorite juice, raspberry would probably outrageous),water to make 32 oz. and 1 cup sugar.

I pitched 1 sachet of champagne yeast in 6 oz. of the juice and every hour or so I added about 1/2 cup or so of the apple juice till I had a half gallon of starter and pourded it in the pee. Took 24 hours or so to "build" the starter.

At 1.050, I added 2 tsp Nutrient, 3/4 tsp energizer, and the remaining juice(21 oz.) and stirred the hell out of it.

This is the original recipe/procedure reduced by 1/3. So if you just double these amounts you have your 6 gallons.