Where did you get that 3rd month is 70% of your training max? Is that from his recent Boring But Big Challenge (or whatever it was called)? Most people just use 50-60% of their training max. Since the training max is increasing each cycle, there is no need to increase the percentage of that rising number.
But if you can get 240 for 10 five times, more power to you. My bench is higher than yours and I don't think I could do it personally.