Based on our experience with similar products 50% is fine. Although i should clarify thats for a particular variety. Never used it for halving the entire hop bill. A small batch trial will obviously be the answer.50% is way too high in my experience. Look at cryo as a middle step and that is recommended at max 20% of the hopbill to keep flavor close to pellets.
I would say the terpenoids are much lower then this.
on side note, it seems these are priced on a basis that makes them similar to expensive cool-kid hops by recommended dosing rates. Some cheaper, some costlier. Gives me the impression that concentrations are made to sort of “match up” to hop prices per lb. also means they aren’t supposed to be full replacement.