carefully separate roe lobes (you can do this at any time in the curing process – it might be easier as the roe dries) – soak shad roe in 10% salt solution (100g/1liter) overnight
remove roe from solution, dry on paper towels
layout a few dry paper towels on a plate, put down a layer of salt on the towels, then lay the roe on top of the salt – add more salt on top of the roe – refridgerate
change out the paper towels and salt every day for 3 or 4 days
brush off salt from roe – poke a hole through the thicker end of the roe and loop some string through – hang roe in a cool dry place for 2 weeks
at this point the roe should be pretty firm – remove string, brush with olive oil, wrap tightly, and refrigerate