should i order as many injection pins as withdraw pins? im getting a 100 count of 23g 1-1/2 for injection, and not sure how many withdraw needles i should get. can i just get a 10 count of 18 gauges and sit 1 in alcohol before i use it, and use it a couple of times? also, for liquid clomid and nolva, would a 23g be fine for withdraw and a squirt in the mouth?