We got my son the Mckinley Explorer set for Christmasand wanted to add an inner circle. The set came with 22"radius curves, i bought remote turnout left and right  switch track 44461 44462 and extra 22" radius track.  The outer circle uses 8 22"curves on each end and i thought the inner circle would use 6 22"curves but when i put it together its just not a clean fit almost seems forced,any help would be appreciated