I rode HTs for ages and always thought I would get a superlight – but when I test rode it felt like it was sapping energy from me on a climb unless I put the PP on.
I now have a flux (09 dw-link) and really like it – and no need to mess around with the PP ever. The Superlight is single pivot, the flux is one of the best performing suspension systems around with a bullet proof bushing system to back it up…
The ’10 version has an extra gusset at the junction above the BB as a small number have ‘cracked’ here – actually the weld has come apart (Turner use a good American frame builder so who nows why). But Turner CS is good and they would sort you out if you had problems, so I would take the discount myself.
The cable routing is also slightly different – the rear dr cable may route differently – on the 09 it is cable tied to the rear triangle in such a position that it could interfere with your calf if you really work the bike beneath you – but the superlight rear triangle bulges out a lot more and would interfere a lot more than the flux, even when riding normally – at least on my test ride.
Browse the mtbr forums and also read the reviews at
http://www.mtbr.com/cat/bikes/xc-suspensio/turner/fluxdwlink/PRD_425925_1526crx.aspx