For some reason, the link to HKJ's site didn't work for me, here's the links to reviews on BLF:
WP2 II This is Old4570's review, could not locate HKJ's review on BLF, although he did a review on his site: http://lygte-info.dk/review/Review%20Charger%20Xtar%20WP2%20II%20UK.html
One minor comment - The WP2 can charge 26650 but at a lower charge rate (1A or.5A), but only one at a time will fit. I routinely charge my King Kongs in mine, but have to insert at penny or dime to make contact with the flat top.
SP2 is the more up to date (and more expensive) of the two chargers and seems to fix or improve on some of the WP2 shortcomings. If you do find it for sale at the same price ast the WP2, please supply the link!