model 1 cassette

I'm trying to transition to your updated sdltrs version.

My old sdltrs option string for a model 1 cassette doesn't work (without warnings) sdltrs -keystretch 400 -scale2 -autodelay -model 1 -romfile ~/xtrs/ROMs/level2.rom -diskdir .

I changed it to... sdltrs -keystretch 400 -scale 2 -model 1 -romfile ~/xtrs/ROMs/level2.rom -diskdir .

It accepts it without warnings, but nothing appears on the TRS-80 screen, and it doesn't respond to the keyboard

If I change -model 1 to -model 3 it kinda works (screen output is garbled but if I copy & paste Its readable)...

MEMORY SIZE?
RADIO SHACK LEVEL II BASIC
READY

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My option string for TRSDOS does work using the same ROM... sdltrs -keystretch 400 -model 1 -disk0 "disk1-0" -romfile ~/xtrs/ROMs/level2.rom -diskdir .

What am I doing wrong?