isshinryuronin
Senior Master
This is the way to go and is common in most higher-level sport training - and it's done for a reason.I pretty much to this with most of my training. If I want to be able to do something at Level 5 then I need to train Level 6. If I want to do something at level 6 then I need to train at 7.
Training is usually under ideal conditions - even floor, few distractions, knowing danger is minimized, etc. Real world fighting doesn't afford these luxuries. Not to be ignored is the fear/adrenalin factor in which thoughts of good form and controlled execution are greatly reduced. That level 7 consistent effectiveness in training goes down to level 5 in real application. So it only makes sense to train at level 9 to be able to perform at level 7 out in the street.
Kata training instills good form. When drilling, the 9th rep is as important as the 1st. Resistance and adding in stress factors (this can be creative and fun) during training is very helpful as well. In other words, training has to be multi-faceted to prepare one to deal with the pressures and surprises of an actual encounter.