Have been practicing up on teapots - mini on the shelf above, small and medium below. Some of these will be glazed and fired...
I'm confident now that small and medium teapots in the red clay will work! ...transitioning to red tomorrow or the next day

A fellow potter had asked about my "cheat" to get a sharp transition from glaze to the bare clay foot ring.
When trimming the foot, I cut a small groove where the foot ring meets the body.
That groove provides a guideline for the tape and it fills with glaze.
The foot ring on the red mug, above, has taken a "flash" or "blush" of color.

Below depicts my use of masking tape for foot rings. Note the tape end is turned over, which makes it easier to find at pull off time - pull the tape whilst the glaze is still damp for much less dust!
I grasp the tape with both hands - same grip as below - and push the ware upside down into the glaze, the lift it out again. The tape is plenty strong enough...

The transition from outside to inside glaze at the top edge, that's another story!

Here's that same mug - neat clean edge.

It's been warm in the Studio these last few days.
Below, jars on the left, newly trimmed and drying. To the right, teapot bodies and spouts.
Above, mini teapots on the right; newly glazed wide mouth mugs and jars on the left.
The wide mouth items are thrown to 100mm diameter opening.
Everything else here is thrown to 80mm diameter opening...

Tea cups in progress, top shelf; wares awaiting inspection, foot polishing and washing, bottom shelf.
I was pleased with the five tea cups that are nearly the same size and shape! They will be paired with new teapots...