It pains me slightly to say this, but I haven't really gotten any stronger in about a year - since I stopped Madcows. My deadlift has improved by about 25kg, but the day I chose to test my new 1RM after Madcows was a day that I wasn't feeling all that, and I also had a change of footwear which affected the mechanics of the lift too. So it wasn't a true 1RM.
So the obvious solution is to run Madcows again.
After punching my numbers - 1RMs - into the spreadsheet, the numbers it outputs are often hopelessly optimistic for my 5RMs. So I edited the formula to use Wendler's value of 0.0333 (suggested in his 5/3/1 ebook) as it gives more realistic 5RM values; however it gives very optimistic values for a 1RM based on a 5RM.
Before I can start the programme again, I need to start benching again so I can input an accurate bench value. I also need to find out my squat, deadlift and row 5RMs. Hopefully this doesn't take more than a few weeks.