Anselm finds it easiest to consider six groups - five containing 8 numbers and one of 9. Updated after 13th. Depends on your personality and beliefs. Anselm's experience suggests that Hot will continue being Hot. I think it's less satisfying than choosing your own numbers, but concede that for others it saves making decisions.
Most tipsters say avoid a number that has appaered in the last draw.
Well, Anselm has become aware that is not true. This means that a number, or a number either side of it, often features in successive draws. Nor do I find relevance in the position of numbers on the coupon, other then to make sure that all six numbers aren't in the same column. Summing Up DO stick with your numbers if you're happy with them. Consider making at least 3 of your picks over 31 and your lowest number more than 12.