Technique is a myth.
For every technical perfectionist, there are many more who defy the copybook. Even Bradman, with his unusual backlift, was no stranger to the unorthodox. Yet you could argue that he is the greatest sportsman of all time; certainly the greatest batsman in the stats book. Bradman is far from alone. If I were to ask you to name the technical masters you could give me a list of grand heroes: Dravid, Boycott, Gavaskar and so on. Yet if I asked you to name some greats regardless of technique your list would likely be much longer.
ECB AND PCA GUIDANCE:
The ECB and PCA strongly encourage all cricket clubs and cricketers to review their existing head protector equipment. In this Guidance Note, references to “head protectors” means helmets with a faceguard or grille.
The design and manufacture of cricket head protectors is now governed by British Standard BS7928:2013, which has been adopted by the ICC as the international standard. The standard ECB/PCA playing contract for professional cricketers also specifies that any helmet provided to a player by his employer club must meet this safety standard.