The milk protein I would be using is Rennet Casein which you have marked as 25% milk. From memory that was Jim Gibbinson's original milk.
I would drop the quantity to 10-15% and add in Full Fat Soya Flour to take it back to your 100%.
I must admit that working in percentage ratios in very easy when it transfers nicely to kilogrammes.
The next part is getting your liquids into the bait, with the eggs you use. Based on a 4 egg mix I would suggest around 25ml of Krill protein hydrolysate, 25ml of Corn Steep Liquor liquid. You shouldn't need to add any flavours to it, but a very low level of n-butyric acid is a good additional attractor, beware it stinks of rancid cheese.
You should be able to get the liquids from feedstim.com delivered to Italy