I recently had installed a wood veneer oak front door. I now know this not to have been the best idea ever, as the veneer has cracked in a couple of places and we can't get it repaired. However the cracking is not yet so bad that we need to replace the door. The door was originally stained with Osmo Oil, and now needs to be re-stained. What is the best product to use? Should I use Osmo oil again? Or would a Sikken stain be better to preserve the wood? Something else??