"These shoes are totally gone", said the lady in the shop. And to be fair to her, I had owned them for nearly three years and already run/walked a marathon in them back in 2015. My trusty blue shoes with the yellow/green laces.
I left them in the shop and ran home in the new ones. The new ones are ace. They're black. Ninja.
And yes, I'm impressed by my base speed so early on. I didn't mean to go so fast, it just felt good. Fingers crossed it continues.