Congratulations on managing to get your entry in. I was hoping to enter some breast and back events and make some qualifying times but had to miss the SER event because of a cold and then left my entry to the Welsh Championships too late and found almost all events full. I decided swimming in London was just vanity anyway, so decided to just concentrate of swimming
As a consolation prize I bought myself a Tempo Trainer and am exploring it. I'm not sure it's working properly. I can change the rate at which it beeps but so far it always displays the same time. I need to read the instructions, I suppose. I gather that there are many dissatisfied customers because of quality issues but perhaps it doesn't really matter if you don't know exactly what rate you're swimming at as long as you can synch to the beeps. So far I like it and find I can swim amazingly consistent times.