So I'm concluding a cycle of the Deadlift Singles program (link) and I'm getting ready to attempt my 1RM. But I'm trying to figure out what's the safest way to program my testing day. Currently my "1RM" (it's not a true max, since I never push myself to the limit) is 405lbs and I'm hoping to reach a new PR above 425lbs. Most people on this program increase their deadlift by ~50-60lbs, so I've love to lift 450lbs if possible In his article, "Kettlebells and Deadlifts Go Together Like Vodka and Pickles", Pavel gives an example of how to reach/attempt a "sort of max"... At 105%, I'd be at 425lbs but if I want to keep going should I just add 20lbs (5% increments) to each lift after? Also, how much time should I rest in-between test sets? I'm thinking 5-10min.