No offense, but scroll down the main basses page... http://www.talkbass.com/forum/showthread.php?threadid=30953 Or....click the link above if you are lazy!!
I've never tried an 5-string before today, but quickly sampled a few couple of hours ago at my local shop. I'm also looking for a 5-stringer and Kingston has been up there on top of my list with Esh Hero V... until today. I tested Fender Jazz V, MTD Kingston V and MM Stingray 5 and to my horror the Kingston had the clumsiest neck of them all, not to mention sharp fretedges. After reading treads about the planklike neck of the MM Stingray 5 - I was pleasantly suprised, I felt right at home with it. The Jazz V felt nice as well. Both of these basses are ofcourse in totally different pricescale than the Kingston and I think it shows. Damn. I still have my hopes going for the Esh Hero V... Damn.
I recently ordered a K5 after trying one out at a Lansing, MI music store. The fit and finish was superb, unlike other made in Korea basses I've played. It's a long scale (35"), so the low B is not floppy at all, and the maple neck option is why I chose it over the Ibanez BTB-405 (another great bass, tho'). It's a simple vol/tone setup, though it looks like you can add actives later if you wanted to, the electronics cavity being on the large side. I enjoyed the look and the feel of the Kingston and to me at least, the playability is second only to an Ibanez SR series 5-string. I'd be using mine, but it's on backorder since the 9th of October...