When it comes to choosing a bowing style, it seems that in the early stages it's up to the private teacher, or whatever is put into the hands of the student. Later on in a bassist's career, I feel that it is very wise to get exposed to both grips. Especially if one is comfortable in one bowing style, it is valuable to have the knowledge in the other bow style. I am a french player. I do have knowledge of the german bow style, but for me the french bow hold is more comfortable. I find that to be true with my bass professor. He is a german bow player, and when he wants to demonstrate something for me on my bass, he finds it difficult to play the same way as he would on his bow and same goes for me. So I would say try both, whatever feels more comfortable and gives you a better sound, go with it. Good luck.
Michael
