Hi Poult ,I take it that you are carp fishing tomorrow ,then wire trace is a no no ,wire trace will do untold damage to carp ,on the other hand most pike caught on carp baits are caught on pop ups ( something to do with the movement )and i say MOST not all , before someone shoots me down .
I think that the chance of a pike picking up your carp bait is fairly slim but can happen but it is better to leave a carp hook in a pike ,if in fact it hooks anyway as the pike has a very bony mouth ,which would work its way out in time rather than use wire for carp which could cut them up badly .