New Pump

I bought one of these today a Blackburn Air Tower 1, as it's difficult getting my tires hard enough with a hand pump, and my car foot pump and adapter doesn't inflate to a reliable pressure.
I also noticed that my tyres were pretty spongy yesterday on my road bike when I checked - so I probably did my 105 mile ride on underinflated tyres, making it harder.
I've also enrolled in a 100km Audax next month starting from near Amersham, so will need to keep my speed up.