Thank you for the input, I appreciate it!
I do use a hook grip, in my current training cycle I’ve been hitting the SLDL hard for assistance, I’ll start doing so with a snatch grip as you recommended.
Also as you mentioned I pull with a rounded back, my max deadlift with an arched back is about 30 lbs less, does this mean that my hamstrings and glutes are a weak point?[/quote]
Its hard to single out specific muscles, but just understand that frequent round back pulling will reinforce that technique and exacerbate any weaknesses/imbalances that lead to that being your strongest pull. On the other hand, flat back, good tech pulling will reinforce better form and work on the muscles that are weak. Work on bringing our flat back technique up, and your overall pulling strength will improve and form should get better. Your absolute true 1RM (regardless of form) might still incur some rounding but I’d avoid making this the majority of your training unless your trying to be a specialist like KK. Which you probably shouldn’t unless your on his level.
Chad Wesley Smith really nails it here:
Why do people always say things like “of course his technique broke down, its a max lift” or “nobody’s technique looks perfect on a 1rm”?
‘Good’ technique is good not because it looks nice but because that is the technique which produces the best result. So with keeping that in mind, a max lift with a technical breakdown is not truly a maximal lift, because if more efficient aka better technique was used you would have lifted more. Now of course, these technical breakdowns will occur but don’t excuse them as just what happens when you do a 1rm, but rather understand that whatever broke down is a weakness that needs to be addressed through strategically selected exercise variations and assistance work.
Practicing in the ranges where these technical breakdowns occur will not correct them, rather it will just further ingrain them. To correct them, you need to find the weights that breakdown your technique (and I’m talking about a true breakdown, not 'oh my knee caved in 1/8" of an inch) and then do volumes of work at 65-85% of that weight with ‘your perfect’ technique (I say ‘your perfect’ because we are built differently, etc and there isn’t a universal best technique, if there was, we would all do it) and build up the strength to express your perfect technique on heavier and heavier weights. Then compliment that training with accessory work that is right for you.
The best technique is the best because it allows you to most efficiently express your strength, don’t become complacent in allowing technical flaws to limit your potential.
You make some good points, but even if your not Konstantinovs, pulling with a round back isn’t necessarily a sign of technical breakdown, a lot of people pull much more that way. It’s technical breakdown if you unintentionally round over during the lift. I’m not going to tell anybody what the best technique is for them, but here’s an article that will give you some information to decide for yourself.