Eric Group
Masterpiece
You have an enthusiasm and tenacity that will go places. You can continue going the way you are going and over time figure things out or you can seek some instruction and training. I was thinking about the very subject earlier today, it is possible with the current state of the art that a determined person could learn how to do bonsai well in a few short years. Learning and developing the art could take a bit longer. However the problem with the art thing is that it is limited by the plant thing. Often we don't have the courage to make attempts to make a bonsai. In my early years everyone believed we had to grow our trees into bonsai when the actual truth was, and still is, that most good bonsai are the products of larger trees being cut down into bonsai. The reason is in the cut down method we are able to take advantage of larger trunks and mature looking branches that are made impressive and old looking when cut down to a smaller tree. A teacher will help you in putting these kind of things in proportions. There are some decent teachers in your area you might want to take advantage of.
The point of how this relates to what you are doing is simply this. Your are attracted to the Procumbens Juniper because of the wonderful full foliage that look mature and what you see of bonsai in the pictures. However Procumbens Junipers, have lousy, small and feeble trunks. They have to have a good deal of age on them to develope a trunk worth the effort to make one into a bonsai. I do not wish to discourage your efforts, I hope you will continue to design bonsai it is the only way to master that which you have learned, but advance to larger and diverse trees. Many of the sub-species of the Chines Juniper family have some really nice trees that make great bonsai. You ought to try some of them.
While what you say is true- pro nana is a very dwarfed variety and takes YEAAAARRRSSS to grow a big trunk- that simply means it is generally not suitable for larger bonsai... For Shohin sized trees, pro nana make a fine "cute" little bonsai and are especially good for beginers IMO due to their "bullet proof" nature and forgiving foliage... It is just fun sometimes to grab one for $5-10 bucks, work it for a couple hours and have a true "instant bonsai"! While it may not produce Kokufu worthy masterpieces, it can help someone develop their "eye" and get used to taking steps that lead to a better looking tree, great for practicing wiring and creating Jins...
I totally agree though- long term, you will get better trees from Shimpaku and related varieties usually.
All that said... Please take no offense Vance but I cannot help but point out the irony in you making these statements about Pro- Nana having small trunks and taking years to produce "bonsai worthy" trunks when you have become known here as someone who focuses a lot of attention on Mugo Pine bonsai from nursery stock! One could easily say the same for Mugo in relation to other Pines I think! LOL