I just bought a set of rainbow CAL27 tweeters from him. and OMG the build quality on these are excellent. He shipped it out on the day I wanted him to ship it out which was tuesday and I got it the next day.
It came in it's original box with everything still in it and he DOUBLE BOXED it, and had BUBBLE WRAP ALL OVER. He' also got insurance on these. A++++ SELLER
Don't be afraid of buying something from him.