yea mine can be adjusted to any height i can throw at it i can move the caper part up and own with press of back button or tab then slide it up or down to fit
another thing you can do if you want to is make some pieces of wood the difference in size of bottle and put under smaller ones that way...
i have friend that i talk with via Skype she is in USA and i trying to find her links and stuff to get the equipment but having hard time finding stuff from USA
all the home brew shops i find are UK as that's where i am and my browser just get uk home brew shops
so any of you buys in USA...