By tipping the fermenter filled with wort back into the pot you are going to be aerating the wort, which you want to avoid.
I remove the bag place in a 15 liter plastic bucket which sits on top of a 30L fermenter perfectly and sparge. Holes drilled in the bottom of the 15L bucket allow the...
You mentioned you used BB Pale, which has an EBC of 3-4 and is a pilsner malt. Just in case your not aware BB do an ale malt with an EBC of 5-7 different to the pale. I think it's a better choice and I would say give 5% light crystal a go.