(...) I would have to say that to check these it would be highly reccommended that you have the actual set. but again, that depends on the size and complexity of the model. Obviously just instructions would do for a small car, but might not for say (...) (25 years ago, 11-Jun-99, to lugnet.cad.dev.org.ldraw)
(...) I agree. Although having both the instructions and the set is infinitely better than having neither the instructions nor the set, a set can probably be *checked* having only the instructions and not the set, to an accuracy of 99% or higher (if (...) (25 years ago, 11-Jun-99, to lugnet.cad.dev.org.ldraw)