<HTML> <HEAD> <TITLE>Re: [CAUT] Piano Horse</TITLE> </HEAD> <BODY> Out here in the countr= y we call that “high centering”.  Also happens when you dri= ve down a country lane with deep ruts. :-) I’m banking on those 5” casters to prevent it.  Anyone hav= e direct experience out there? Ken Z. On 2/28/06 11:32 AM, "Jeff Olson" <jlolson@cal.net> wrote:<= BR> <BLOCKQUOTE>The one problem I've had with dollies/wheeled platforms that have several f= eet between front and back casters is "bottoming out" going up and= down several stairs on ramps.  That can be truly annoying, especially = with a heavy instrument (by "bottoming out," I mean that the cente= r of the platform comes into contact with the top of the ramp -- a common, i= f not unavoidable problem when moving upright pianos with organ-style end do= llies, one reason I never use them except on organs). Perhaps the Grand Chariot elevates the piano high= enough (casters a nice 5"!) to avoid this problem under most circumsta= nces?   Jeff O. </BLOCKQUOTE>-- Ken Zahringer, RPT University of Missouri School of Music </BODY> </HTML>