im doing site injections in my calves currently using 29insulin syringes it only takes 2minutes to draw out gradually going to work my way to 1-2ml currently only doing 0.5ml so when time comes to 1ml insulin syringes wont be any good. Where can you get 29g pins from? i have only seen 30g pins would the difference be so vast between the 29g and 30g? thanks im uk based.