Upgrading to v12 - can we still run v10 MobiLink server on same box

[Brian]

We are looking to upgrade from v10.01 to v12.01.

Is this process okay:
1. Install new SQL Anywhere v12 software on server.
2. Start up consolidated database as v12 (dbsrv12)
3. Start up mobilink with v10. We have to re-write all of our scripts
to use named parameters since the use of question marks in SQL scripts
has been deprecated.
4. Re-write all mobilink scripts.
5. At some future point, stop the MobiLink server running v10 and re-
start using v12.
6. At some future point, run a full unload/reload.

We are having some performance issues with our application and v10.01,
so that is our primary purpose of upgrading at this time and trying to
map out steps to make this a more manageable process.

Of course, lots of testing to be done before we get to step 1.

Any thoughts or advice is greatly appreciated.