Servicing the KLE500 today and the chain was stuffed - running a tight spot. At 10.5k miles. Seems a bit low for an O ring original fitment chain. The sprockets looked good so I ignored the advice often given and just bought a new chain. The man at M&P suggested that it was poor lubrication and that I buy a Scottoiler. I explained that I used Silcolene chain lube fairly regularly (The chains on my XT500and ER500 had both done more than 10.5k when I sold the bikes and they had no tight spots). Not good enough says he - buy a Scottoiler. What chain lube and lubrication regime do you use?