Hi John,
You are already upstepping to TC-1024! In the above picture I used: TC=32768

... and continously ram the <enter> key to speed TC up
For testing you can do:
Look into this folder:
... Documents\SH3\data\cfg folder
and then edit:
main.cfg
Under the section [TIME COMPRESSION] Change:
Maximum=8192
Above TC=256 it will impact gameplay as for example airplan overjump you.
Of course I also use the debugger to verify and check it. I tried to debug the TC constraint as well but no luck until now...