It's no longer May but hopefully, you haven't begun removing wood from your comb yet.
In my opinion, it's usually a terrible idea. A much better way would be to install an "add-on" rib on top of your exiting rib. Add-n ribs are available in aluminum or space-age delrin plastic. Delrin ribs attach to the existing rib with double-sided tape and have been used successfully for years by people like us with low cheekbones.
To determine how high an add-on rib would need to be, use a thin strip of wood taped to your rib. Balsa from a hobby shop works very well. A cut-off map pin will work for a temporary bront bead if you need one.
Experiment with the height until you can look along the rib with snug cheek pressure on the comb. Order an add-on rib from a number of sources that you can find by posting a thread on a Website. Welcome to the Stock Fitter's Bible - Removing the Mystery by Rollin Oswald