My home machine and my travel machine are set up to make the same size blocks.
I have never been able to use a full 1/4 in as my blocks always come out to small.
So scant is what I use and it works out fine.
I wasted too much money on 1/4 in feet and now use my regular foot with a scant needle setting number on both my machines.
With the group I belong to it is necessary to make an accurate size block for group projects.
But if you dont need to do that it dosnt matter if your blocks are not the size the pattern calls for, it will all fit togather fine.