i use a regular lead pencil- i've (wasted my money) on many different marking tools- all because someone recommended them or they said (for quilting) for what ever reason-
i always wind up going back to a good ole pencil- i've never had a problem removing pencil lines- i've had lots of problems removing (specialty marking tools)
my only advice is---
what ever you choose to use- test it on a small area first to make sure it will come out---just because the packaging says it will does not mean it really will---and be careful to read the (don'ts)===some of them disappear if touched with a iron- some are permenently set with one- some disappear with water- others set in---
always test---every time---just because it washed out of the last quilt you made does not automatically mean it will come out of the next one...always test= and try new things to find what (WORKS FOR YOU)