Congratualtions Mac on your sober days.
I never did 90 in 90. My town has a meeting once a week and lately I haven't gone because I have a new position/hours at work.
However, I did do a 6 week rehab that got me on track.
You don't have to do anything that you feel uncomfortable with. This is ultimately your recovery, your family, your job and your life.
You do what you feel is right for you and if your now sponser stamps her feet and cries, so be it.
Wishing you peace and strength.