I am restoring a Thompson Ranger which when I took over the project from a previous "restorer" was in rough shape and required a fair bit of work. I have rebuilt both stems and replaced most of the ribs at both ends and no planking remains there. I have also repaired eight cracked ribs; thus a lot of planking in those areas is also gone (woodstove kindling). In addition the previous restorer removed someone's fiberglass/epoxy "repair" and while doing cracked a third of the remaining planks thus requiring plank replacement in several scattered places. I have been re-sawing and drum sanding some very nice western red cedar preparing new plank stock and it is going very well. I am also quite impressed with the quality of the new planks compared to the very dry, stiff & cracked remaining insitu boat planks. Given the fact that I will be replacing over 50% of the planking I am considering a 100% re-planking job. Reasons for doing 100% include that the most difficult planking at both ends must be accomplished no matter what. Placing 100% new planks in the proper order would be easier than a 50% plus patch job. Final product would be of a higher quality as a functional boat and beauty. So...why not?