I had an orginal 17lsI and then upgraded to the 16lsII. The 16lsII far outperformed my 17lsI. I have not heard the 17lsII personally but would think that it is very close to the 16lsII; but better I would be skeptical.CJ says it is better because of the new teflon caps that they are using.......but thats what I would expect them to say. I would personally jump on the 16lsII it is a very nice piece indeed especially given the prices on the used market. Just my opinion good luck and hope I could help.
Chuck
Chuck