I loved GP too. i remember buying squeezing out the sparks 78/79, and parallel lines on the same trip. I saw him in around the time of , i think ,another grey area. He'd binned the Rumour and had a US bunch of session blokes with him, including IIRC Carlos Aloma on bass. i remember not liking the gig much. 20 years later i think i saw him do a solo show at the forum , or as it was then the T and C club. I must have a good inch and a half of his stuff on the black stuff.