About
QWERTY layout British 102-key keyboard, except with the keyboard driver replaced with a Japanese 109-key keyboard driver...
I am also using AutoHotkey to swap/add keys. Such as making the UK layout's 102nd key perform the "半/全" key's function (IME on/off) rather than output backslash (\). ^^
For typing Japanese characters, I only use かな入力 input method; never ローマ字入力 layout. I've never had a keyboard with the kana symbols written on it, but learned to touchtype kana layout regardless just using my English keyboard. :P
KeyboardRazer Tarantula (English UK 102-key, QWERTY layout)