Hi TheTudor,
A-CAT are quite similar in hull shape since the Flyer pierce-wave design has spread across all boat builders but Goran Marstrom.
Bimare has probably the biggest production and the hull shape is designed for average German sailors with appropriate volume (its bigger export market). Since 2002 it is all carbon/vinylester
like its peers. Boat settings are a bit cheap, but the boat is the cheapest by far. Marstrom boats are Carbon prepeg/honeycomb sandwich, and use 300gramms / square meter carbon, instead of 200gramms for foam sandwich technology boats.Australian boats have the best settings by far and also the best sails are Australian as well.
Hope it can help