Thanks everyone. Gene, I overlooked responding to your question. The only instructions I give the local Office Max is the weight of the paper, in this case 65 lb. The nice sheen is either from the paper itself or the printing process. The printing really is first rate. I think I got the 65 lb. recommendation from one of Dan's earlier build threads, maybe the Avro Spyder, although it might have been the Pfalz Dreidecker. That is a nice weight for most structural components and the airframe, but a little heavy for small parts like exhaust pipes that have to be rolled. For those, I've taken to just color copying the part on regular 20 lb. paper for ease of rolling. Those pipes just get glued onto the engine cylinders and bear no weight, so lighter paper is fine.
Best regards,
Bob