the crooked nickel video talks about 'on point' gridded fusible but I bought a whole bolt of straight grid fusible figuring I could lay out my t-shirts in different configurations depending on how big I want the blocks to be, sometimes using parts of the backs, sleeves etc. Not all t-shirts lend themselves to a square block. Don't know if this makes sense. But I do like the idea that I can iron down on a grid which will keep things straight and even for me.