By Matt Hardy The famous Grand National will get underway later today at Aintree, but it’s different to editions of recent years. After last year’s event was delayed due to protests, the racecourse chiefs – as well as the Jockey Club – have changed a number of elements at the iconic Liverpool meet. But what has changed? Earlier start timeThe Grand National will still be on Saturday afternoon but has been shifted forward to 4pm. Previously the race got going at 5:15pm but the change has been made in hope of securing better ground for the horses. Fewer horsesOnly 34 horses will compete in the wo…