I agree with Leia; a friend of mine got a Pacific, and I've both seen and driven it, and though it is a lovely cart, I also consider it 'too much cart' for the A sized minis, both in weight AND proportion.
I have a wooden road cart built by Pequea Carriage, and it is a very nicely built and comfortable vehicle...its builder is the brother to the builder of Shari's cart sold by Country Carriages, and the carts are virtually identical! However, it is pretty 'size specific'--like Shari, I wouldn't recommend it for anything very small--and, the shafts on mine are really too short for my 38" mare(though I could probably have them replaced w/ longer ones-they are 48", and I could probably use the cart with BOTH my 34" and my 38" horse with about 52" shafts as a compromise.( I got the road cart BEFORE I got the taller driving mare, so ordered it with the others in mind. )
I have a British-made Bennington cart, and I would highly recommend it! It can even be outfitted w/ lamp holders, but is basically a 'marathon' type metal cart--and, again, I consider it a bit large for the A sized horses. I use it exclusively for my 38" mare. Because it is imported--(no one is building it in the US, as they are the British-designed Bellcrown), it is probably now 'out of sight', pricewise, ;though-- what with the weak US dollar AND the increasing costs of any sort of shipping....
I also agree that a Meadowbrook can be too heavy...my first wooden cart was a truly AUTHENTIC miniature Meadowbrook; it even had a modified gig shaft, which I really liked--but, it was really too heavy for my 33-34" horses, except in a nice level, well-packed arena...I sold it for that reason.
There really ISN'T much of any 'suspension' on the Jerald, Graber, and that type show carts'; I no longer own one, but can imagine that regular use for challenging CDE work might be hard on them. I have a single-seat Missouri Flyer being built now, with the aim to use it primarily for my A sized horses. The challenge is to keep the weight as low as possible while maintaining the best features. I asked for 28" wheels,and am getting two sets of shafts--will see how that works! I probably will never actually compete in an 'official' CDE, but want it to be a cart that could be used there--I would accept being 'knocked' in presentation, because I like the idea of the cones and the obstacles better, anyway!
The design and look of the wooden Silver Penney carts just don't appeal to me. If interested in a wooden cart of that general type, I'd recommend a look at the several types built by John Stoltzfus of Pequea Carriage Shop in PA.
Margo