Do you get a dwarf tree when you graft a Calamondin on a meyer rootstock?
Is it a good idea to graft Calamondin on meyer? What are the grafted plant's properties?

I think one very well known European dwarf citrus nursery graft Calamondins on a meyer rootstock. Their plants are very beautiful, with very dense growth, and they are dwarf. What do you think?

On this forum danero2004 has showed me a picture of his Calamondin grafted on a meyer and said that it produced very dense growth (which the picture confirmed).

For example:
Danero2004's Calamondin grafted on meyer:

And the nursery's Calamondin POSSIBLY grafted on meyer:

the tree is now much bushier and bigger , and much much bettter for pot growing

Here's some impressive pictures I found on one Polish citrus forum:

A Calamondin, grafted on Meyer, by Viveiros Foral nursery, that has many Meyer lemons growing out of its rootstock.

probably many will say that leaving those lemons will kill the grafted tree , but here is the oposite

Are there any other techniques involved in producing that style of tree ?
Is it a compact "variety" or selection of Calamondin used as the budline?
Are they getting buds/grafts from the "bushy" part of the source tree ?
I budded Calamondin from a vigorous water shoot, and it produced tall thorny trees. opposite of your pics here.
What type of graft was used, etc
Apart fom using Myer as the rootstock, what else are they doing different ??

They use Meyer's Lemon because it roots very quickly and easily, saving the production time of growing from seed.
In fact, it is possible to take the cutting and perform a graft at the same time if a mist propagation system is used in warm temperatures.
Reducing the overall time for production of a final sellable plant is important for a commercial, ornamental citrus nursery - they aren't particularly concerned about the long term rootstock qualities.
Mike/Citrange

Meyer has a 50 percent lemon parentage, therefore I wonder about the quality of fruit grafted upon it? For fruit to be sold commercially to the public, I've never known, or even heard of a grower anywhere that has ever used it, or even thought of using it. - Millet (631-)

I don't think it's meyer lemon.
I think about a Volkamer variation.... I have never heared about a meyer lemon as rootstock from spanish nurseries.
Because the spanish citrus certification program inhibits many rootstocks....

I have maybe one complain to make but this might not be true and it is not due to the fact that is grafted on meyer.

And that is , that the branches are quite narrow and thin compare to a normal tree , this method to make tree dwarfer maybe had something to do with it.

The tree is indeed more bushier than his relatives.

From my own trials, i had very successful grafts and fruit quality on Meyer Lemons. Fruit quality is superb for these scionwood on ML:
Yuzu, sudachi hybrid, s-9 mandarin, vainiglia sanguigno, seedless lemon, moro BO, tarocco BO, all kinds of lemons, kumquats, limequats, miyagawa.

But it is not at all rosy, and my bad performers on ML are limes, grapefruits, pummelos.

The biggest problem i encountered is that ML is prone to gummosis so i am hesitant to use it as my preferred rootstock. I can use it as my rootstock but not my first choice due to our local citrus problems.