remember with the frixon pens you do have to iron the marks away---once the yoyo's are attached will you be able to get an iron to the marks?
instead of one of the air erase pens- try a water erase pen- or pencil=there are numerous to choose from- then you only have to spritz with water in a spray bottle to remove your marks- i've used a blue one that lasted for months while i hand quilted a quilt- then came out just fine when i spritzed the finished quilt.
do test first though to make sure it's going to come out ...i've heard sometimes they (soak in) to the quilted threads- more difficult to remove.