When the bear market eventually hits this will be the easiest money printer. Solana outperforms its own ecosystem when they go both up and down, which is impressive in a bull market, and to be expected in a bear. Therefore solana hedged against its own ecosystem has practically been up-only thus far.
According to FTX the SECO basket is a combination of SOL,SRM,MAPS, LQID, FIDA,RAY,OXY. If done manually one can add/remove more tokens as they enter the ecosystem or remove/add SOL for more or less volatility.
The only short term downside would be a short lived sh*tcon run. However they usually come towards ends of cycles and mean-revert very quickly.