I think I got sold into boots that are to small?

in over 20 years fitting boots i think i can say that i have seen only a handful of boots that were physically too small.....if they were, you simply wouldn't have left the shop

there are plenty of shops out there willing to tell you boots are too small (mostly to sell you a new set a size too big) the 2 biggest things that make boots feel too small are ankle joint range of motion and bad technique!

there are also many other factors like how you clip the boot, the footbed, the break in, the liner, the volume/width/height etc that Jim alluded to which will also affect the outcome

maybe you should take them to a boot fitter rather than a boot seller (which to be honest sounds like the person you saw) get a decent footbed and some adjustments and all, i feel will probably be well, at least then if they are wrong you can still take them back to the "seller" within the 30 days

chris,

     I will echo much of what start house said.

     Read the WIKI "Which boot will work for me" at the top of "Ask the boot guy's"and do a "shell check".

     Trust that if you have the right amount of space behind your heel, when you do the shell check the boot is the right size.

     If this will help you any, I measure 28.25 on a mondo board and ski in a boot marked 27.0, my toes don't touch and I can eat lunch in them buckled, no pain.  So as crazy as this may seem your boots may be to big.  

     By the way, be sure to buckle the ankle buckle (second from top) as tight as you can stand, or the liner will slide forward and jam your toes into the front of the shell.  If you feel your calf being pushed by the back (top) of the boot cuff (back seater), your foot will be pushed forward.

mike

Cris,

yes the stock insole is really that bad, to say it is no better than carpet tile is an insult to carpet tiles, to see the effect of not having a footbed try this, sit with your foot nice and straight  relaxed with minimal weight on it and put a mark on a piece of paper where your toe ends (you may want to get someone else do this), now stand up and put a new mark on the paper, if it is more than a mm or 2 further forward than the first mark this is how much your foot is moving as you stand on it....now think about the amount of pressure you put through the foot when you ski and you will see why we need to support the foot in its best position  this can explain both the arch pain and the toe on the front of the boot (assuming all other dimensions are correct and you are not surfing in the back seat)

there is no difference between the liners in 27.0 and 27.5 other than the thickness of the stock insole, all this does is make the boot feel a little narrower and tighter top to bottom for the first day or 2 till it squashes down to the same thickness as the piece of foam in the the bigger size

re questions, most of them will probably be answered in the wiki that mike suggested you read, but a new boot should feel like you want just a little more room for your foot in its new state this is as tight as it will ever be, far better to be having to make it bigger in places than to be trying to make it smaller if it is too big 

if you are really tight for cash then try a pair of superfeet off the shelf inserts, either the green or the blue depending on your arch profile, they have a 60 day money back guarantee so worth a shot if nothing else if you can stretch the extra $ then a well made custom insert is a great investment, where are you based, can you get to one of the recommended fitters, if not we may be able to recommend someone close to you, but a badly made custom insole is worse than no insole at all sop select the fitter wisely