I'm right handed and have no problems with that side of my head. Trouble begins when I need to switch to my left hand - I just don't have the same level of fine control with that hand.
So advice-wise; take it slow in the beginning but be even more careful when using your non-dominant hand.
Also, based on my initial experiences, have a regular razor at hand. If you begin to get frustrated switch back to what you've used before. One good gash with the HB and you're apt to blow your confidence with it - I think that's a large part of why I'm still on the learning curve, not only do I need to master the HB I also need ot get past concern with making another gouge.
The Headslick is great stuff and it's even better with a few drops of Shave Secret or similar shaving oil rubbed into your scalp before the 'Slick.