OK, sorry for the delay, but the Takumi just arrived today.
I knew from the first moment I picked the brush up out of the box that it was a winner. I love, love, love the revision they made in shortening the body. It moves the hand further forward, and makes it feel like you can get right on your work piece for very fine detailed work. At least for me it does. I work with a lot of vintage brushes, particularly early American pieces - Wold, Paasche, and Thayer Chandler - even early Badger brushes, all share a very short distance from trigger to tip. The new Takumi is the first Japanese brush that allows for that same feel. It is still about 1/4" longer up front than the early American brushes, but that forward hand position (and balance) is really welcome, from me.
I wasn't sure about the color cup revision... but, now that I have used it, I can tell I will be adding some more of the cups to my existing arsenal. I chose to ditch the large 7cc cup, and added the 2cc cup from a NEO. I will grab a couple more bases, and go with a 7cc, 2cc, and a Micro Ring from Harder & Steenbeck to top one off - so, I have the three options at the ready.
I did the trigger conversion using a Micron trigger a couple of years ago on one of my Eclipse HP-BS brushes, so have been familiar with the feel, and function. I much prefer it over the button top trigger on the Eclipse, so it is a welcome addition, for me.
The original color cup style still fits the brush, as do all the Aztek and similar style cups for those that don't care for the new gravity feed style. One thing I did notice, and was kind of grateful about - with the shorter front end of the brush, depending on the angle you are working at, the bottom of the color cup on the old style can get very close to your work surface. I have in the past dragged a cup or two across my work, either scratching the work, or having the color cup pop out of the brush. The new style provides much more space under the cup...