I headed over to the Recipe Builder™️ and put together this recipe based on a suggestion by @Banbeer in a previous thread. Apart from a terminal surplus of ignorance, my constraints are two puny stock pots (6l and 3l respectively) my hop collection (just Citra and Columbus, all pellets) plus the fact that my LME comes in 1.2 kg bags. I want to use one of those bags in its entirety and produce something that I can drink, hence the recipe. I'm aiming for 8 litres in total because I have two spare 5 litre vessels and want to put 4 litres in each, one of which will be dry-hopped in the name of experimentation.

I've a couple of questions for all you experienced Extract Brewers:

- Have I picked the right fermentable? Mangrove Jack's 'Light' LME isn't known to the builder, so I went for a generic-sounding 'Liquid Malt Extract - Light (4 °L)'. No idea if that's the right one since Jack is silent regarding the °L of his product.
- I'm shortly to be the lucky recipient of more 'Crossmyloof Home Brew Beer Yeast' than I can shake a paddle at. This variant is known to the builder, but it doesn't seem to matter if I configure my recipe to use one gram or one kilogram. How much do I add??
- I can see that for a (fermenter) target of 8 litres I have a Pre / Post boil size of 12.25 and 8.51 respectively. Is my understanding correct that I'll need to boil 12.25 litres of wort in order to end up with 8.51 litres, of which I can expect 8 litres to hit my fermenter? I know I'll have to do this in two batches since my biggest pot is 6 litres, so 12.25 might be a tad too much. If my understanding is correct then I'll have to scale down the amount of water and suffer an increase in ABV, if I want to use the full 1.2 kg of LME. Right?