Check out this link. It shows that using a blend method among others will give you a ghosting effect in the deinterlaceing process.

Deinterlacing Filter Tests

What type of deinterlacing in the IVTC process is everyone using (e.g. blend, bob, etc)

Also,
CHECK this link out, it is the best deinterlacing filter I've come across:

MSU Filter

I just emailed them about a release date.

& this 8 to 1 lossless codec (I've never seen anything like this, not even squeeze give this ratio)

MSU LOSSLESS CODEC

FYI, I haven't tested this codec yet but will very soon.