I make 2nd run wines, which appears to be heavier than piquette. Personally, I'd not make what I read as instructions for piquette. My 2nd runs are wine, not "wine like".
In 2019 I made a 2nd run on mixed Malbec, Merlot, & Zinfandel. The results are lighter bodied than any of the three 1st run wines, but have a lot of flavor. It's good enough for steak, and certainly great for salmon or roast turkey. It ages faster and is quite drinkable at the 1 year mark. And it extended my production by 50% at a cost of $0.38/bottle USD. FYI -- I did a medium press, which spent 10 months in a neutral barrel with 6 oz oak cubes, then hard pressed the remainder. The hard press has a bit more body and is fruity, while the light press has nice caramel notes.
This fall it's Merlot, Zinfandel, and a Vinifera blend. I pressed extra hard and did not separate, so it's all one batch (raw 20 gallons).
To make:
Press the 1st run medium-ish, don't press hard. For every 2 gallons of 1st run wine, add to the pomace: 1 gallon water, 2 lbs sugar, 1/2 tsp tannin, 1 to 3 tsp acid blend, yeast nutrient. Let it ferment to below 1.000 and press hard.
My proportion of water to 1st run wine is a bit light -- for 11 gallons of 1st run, I'd add 4.5 to 5 gallons of water, plus additives to match. Quality over quantity.
I ferment the batches separate as it's more manageable for me, and blend post-fermentation. Too much work to keep 3 more batches separate. This fall I did 3 batches (two Merlot, one Vinifera blend) and divided the Zinfandel pomace between the 3 fermenters. This one has much better color, but I used enzymes in the 1st run and got a LOT more color extraction.
EDIT: This is this year's 2nd run. Color is great.