Assuming dead and good track conditiongs are interchangeable (the same )

Fully agree with you. The best conditions for betting are Good or Heavy.

so if having a punt on dead track is "slow" track form a consideration?

what i meant is "slow" track form the best indicator if having a bet on a "dead" track meet?

or just look for good "dead" track form?

With "dead " track conditions parts of the track are slow -heavy in other parts and good in other parts causing horses to slip and slide all over the place.

You can use slow as a indicator on whether the horse can handle dead tracks.

Generally speaking though as Wesmip pointed out the best conditions to bet on are good and heavy.

Cheers
darky