This is a hard question I think. Tet mini's are still in a phase of pretty early development. There are a lot more diploid mini's out there exposed to a lot more gardens for performance feedback and that have a lot more of their genetics explored.

I've been researching over the past few weeks looking for a tet mini to cross with a particular 4 inch seedling of mine. It comes out of 'Spacecoast Sweetness' which is an outstanding performer in budcount, branching, etc. However, it is not too far from orange with red eye so I got 2 ugly muddy orange seedlings out of the reverse cross that look nothing like the great one I got. I have a few more not bloomed yet so we'll see if this is indeed the common pattern.

One thing you will find with tet mini's at this stage of development is that they more often throw seedlings that jump back up in size. This is because the small size trait is not set hard yet and there are many larger flowers in their recent genetics as hybridizers try to increase the gene pool of the minis by outcrossing to larger flowers.

If you would like to develop eyed mini's look to Grace Stamile's mini lines. Most of hers come out of conversions of Siloam series so have an eye that is very dominant in successive generations. Her red mini's are the exception to that as they come from conversions of other diploid lines.

If you are wanting to develop pastels without eyes, look to Elizabeth Salter's lines. Hers are developed out of conversions of such great creme self diploid minis as 'Moonlight Mist'.

You may not find these plants on the auctions frequently and if you need to have seed you probably would get it quicker if you find someone who grows the plants you are interested in and work some deal for them to make seeds for you.

Also, are you aware of the AHS Australian daylily email Robin? I'm sure folks there have similar issues and may have some ideas for you.

Best of luck.