Either I am very lucky or there appears to be a big difference between individuals as to how likely they are to be bitten. I am shooting a few deer (about 1 a week) and I am out shooting 3 or four days a week. There are high numbers of ticks but I have only been bitten once in two years. Mate of mine on the other hand is bitten regularly and often. My dog is picking up at least two a month.
I wear protective trousers and I take basic precautions during handling (no sprays) but I can't imagine that this is making a great difference between us. A sample of two is hardly a sample at all but there is something going on making a difference between us.
Maybe its the garlic cloves