I'm not sure what sized unit you are using but the easiest fix is probably a 2:1 purchase on your halyard. Working alone you can get 300-400+ pounds of tension just by standing on a bight and with someone else you can get way more if you really sweat it up. To answer your question about whether or not you are set up correctly try this site for some info: http://www.classicmarine.co.uk/Articles/WMgear.htm