It obviously depends on how you trade. Spreads are a problem if you need immediate fills and take liquidity from the order book. But spreads can make you money if you keep an order at just the right place on the order book, although this isn't easy to do these days and requires a great algorithm and automated trading.
The question should be: Are you making money trading palladium? Don't let slippage or anything else make your decision for you.
The question should be: Are you making money trading palladium? Don't let slippage or anything else make your decision for you.