Been wondering same thing. My spike antibodies in dec were still over 2500 so my oncologist and I decided to wait a bit. I know there is no recommendation to get spike antibodies or if the level signifies protection so not saying to do it. That’s just what i do. I also want to see if there will be a better vaccine coming out but suspect I’ll get the fourth soon. I think the recommendation caught the docs off guard and so no real coherent guidance.