Paying nearly £2,000 for the flagship unit with this delay between patches is not really acceptable. The sounds are amazing and I tend to find a good base sound then progress it to have a clean patch, one with bite, one with 'chunk' and then heavy and solo. This isn't workable on a single patch so the sooner Line 6 can fix this the better. Digitech had this technology back in the mid to late 1990s.