I'm not following why you would be having difficulties using this method. Are you having to capture pinheads from a colony and hence are having difficulty because of all the larger nymphs and adults in the way?I prob just going to keep using the catch cup method, I will get better at catching the little buggers. right now im feeding 50 slings 2-3 times a week. gets kind of time consuming. im going to start experimenting with refrigerating them before feeding to slow them down.
thanks for all the replies !