I had both my seats re-worked by Tony Archer, a bit of re-shaping and extra foam - cost about £100 including post both ways ::008::
A mate of mine has the Explorer and is trying to sell his, he tested it back to back with the S10, but when he bought it (December 2012) it was cheaper for a brand new Explorer than an ex-dem Explorer - the main problem with Yamaha's in the UK is the pricing, ridiculous that the Yamaha costs more than the V4 Honda....
.... However you can find deals, most UK owners on here got a great deal, either a straight discount, ex-demo, pre-reg or pre-owned low miler, deals are out there ::008::