I tried the switch to see if the Tech 6's would be lighter and feel more comfortable/ less restrictive. What I found was that they were not any more or less restrictive. They fit a bit looser in the ankle, which I didn't like, and that was after going down to the next size.
I didn't even ride with them long enough to fully break them in - they just didn't give me that good, comfortable boot feeling. Also, the ankle 'wore' on my a little funny.
I kept going back to my Tech 8's. I hate to break in a new set, but I think the extra money is worth it. Another factor was I didn't want to find myself in a doctor's office second guessing what might have been different had I been wearing a 'premiere' boot.
My opinion, after some actual testing, is pay the extra hundred bucks and get the Tech 8's. There seems to be no downside but the cost.
I've used (have) both, in fact I've been thru 3 pairs of Tech 8's, 2 pairs of Tech 6's. For comfort, Tech 6's. The 8's are heavy and thick in the ankles, the 6's light and have always provided enough protection.... Is the extra protection/bulk of the Tech 8 worth the extra dollars? Fortunately, I've never had to find out.
mxmatthew, Machine's site is http://www.machineracing.com The price listed on the site for Tech 8's is $549.99 Canadian. If you call they may have another deal if the pricing is different from their catalog. Also I know a local KTM dealer here ( http://www.gregscustom.com ) is selling out 03 Tech 8 stock for $399 Canadian but only while current stock lasts as they want to blow them out since there is some sort of change to the 04 model tech 8 boot. Greg's doesn't have any online shopping set up so you'd have to give them a call, but they are great folks to deal with.
Somehow I don't think that whatever is sticking out of that toe is a desired aftermarket accessory.. Man that is making my knees hurt just looking at it.
I have been using a pair of Tech 6's for about a year now and they have been good boots up to this point. Never have owned 8's, just can't bring myself to pay for em when 6's are so much cheaper. But you may look on E-Bay and see if there is a good used set of 8's on there. Friend of mine picked up some practically new (wore 2x) Tech 8's for $200 if memory serves me right.
Thanks for all the comments. I've decided to go with the Tech 8's again. Not b/c I think they offer much more protection, but b/c I know they fit me right, and I think the quality, finish, and durability would be hard to beat.