a few options you might want to make sure your doing
1. Get the hair on the head wet.. The hotter the water the better to soften the hair
2. Use an exfoliator Like headshead or st i'ves appricot scrub.. blemish and blackhead control
3. A shaving oil will sometimes work a popular one is shave secret it can be bought at walmart.
4. You are already using head slick so that is a good shave gel I wouldnt change that habbit.
5. Try shaving in the shower.
6. If you are using the triple blade that has come with the headblade you might want to go to a double blade such as an atra/or a generic atra. The persona brand that walmart carries makes a 2 blade atra clone its possible to get 10 of these blades for under 4.00. The other blade that is used with the headblade using the black adapter is the gilletter sensor excel.
7. Remember when you are using the headblade to not put any pressure on the "blade" part of it It is okay to put pressure towards the back by the wheels but do not do up front you cut yourself almost everytime.