Also, if it's available, try some 30% nitro in the Saito. They absolutely love that much nitro. I use Cool Power heli blend in my only Saito. Makes it purr like a kitty cat and gives it lots more umph!. The 16X4 is also a good choice

You are correct though. I use a YS110 with an APC 17X4 in mine (2nd one, dumb thumbed the first one) and it appears to be a perfect match