I highly recommend this book on heaving to in modern sailboats:
Storm Tactics Handbook: Modern Methods of Heaving-To for Survival in Extreme Conditions
by Lin Pardey, Larry Pardey
I've found that with a 110 jib on my C22, the backwinded jib overpowers the main, and pushes the bow too far off the wind for proper 45-50 degree angle from the wind. My C22 will heave to better under the main alone, but I don't have a small 90% jib as you do.
It seems like fore-reaching becomes a problem when winds are too strong. If the C22 is fore-reaching, perhaps get a deeper reef installed in your mainsail, and a smaller jib (or no jib).
A parachute sea anchor rigged with a pendant line will also prevent the boat from fore-reaching, and make it possible to heave-to under bare poles for severe weather: