Elektron Musical Instruments

I'm attempting to sync Cubase SX with the MD with SX as master and MD as
slave.  However, when playing back a sequence from SX, the tempo on the MD
is all over the place and not stable.  I know people have suggested that the
MD be the MTC master, but that isn't what I want at the moment.  I want SX
to be in control of things.  Basically I'm sending program change messages
to the MD to trigger patterns but still be in sync with what is happening
within SX.  I've successfully done this with the MPC and MD in the past with
no issues.

I looked in the Elektron-users archives and there were a couple of threads
about this early on but there seemed to have been no definitive solution
mentioned that was clear to me.

So, can anyone out there that have successfully used this configuration fill
me in on what SX (and MD) settings you used to get a proper stable midi
sync.  I'm more interested in MTC sync than midi clock sync.

thx,
nate