Re: can aikido benefit from chinese arts?
I've been studying Aikido for a little over 10 years, & fell in with an excellent Tai Chi instructor about 4 1/2 years ago - very meticulous in body movement for the forms.
I would have to say that tai chi has definitely helped me in my Aikido, and the other way around, too. It also helps that we do some Tai Chi technique, as well, & not just the forms.
Tai Chi movement is from the center, as is Aikido, & doing it slowly without resistance helps focus on relaxation while moving, similar to doing weapons suburi or kihon paired practice to get the body/footwork correct before moving into the awase foms for kumi tachi.
It took a couple of years for me to see the benefit to my movement on the mat, but it's definitely there.
Having learned to relax & sit into my qua makes a big difference in how well I can blend on the mat, too, without getting out of my center too often.