I am looking to buy an Africia Twin DCT. There are some left over 2017s around and I can save approximately $2,000 CDN. Would I better off to spend the extra and buy a new model with the upgrades or just buy the 17 and save some money? Is there any issues with the 16s and 17s that have been addressed and is it worth the extra money to have the upgrades? Thanks for any input.