This is Hugh's official homepage, just for your info. So you can be sure that the things there are correct.

It's true he worked on every album but nothing is said anywhere how much he did. It could be from playing all bass parts, to playing some bass parts to just giving some ideas for the bass parts that Alec played.

Because of the bass line of KTF (the song,not the whole album), he said that recently on his homepage in the Q&A answering a question of Lunasrose who also posts on this forum here.