does the instruct-pix2pix image CFG scale parameter do anything?

[zero01101]

all other parameters being equal, the new image CFG scale slider for instruct-pix2pix models provided in the img2img tab seems to not do anything

0:

1.5:

3.0:

if i'm missing something and being stupid please let me know; i don't want to post a new issue if this is just me being dumb

[zero01101]

oh balls is it because i was using DDIM which is notably unavailable in the extension

[zero01101]

almost certainly yes

[shoutOutYangJie]

why don't DDIM support image cfg?