A scant 1/4".....I thought all quarter inches were the same but I have seen a few patterns requiring a "scant" 1/4". I use a 1/4 in foot so please what is the difference?

It's a thread or two smaller - allows for the rollover when pressing.

a scant 1/4" is about 1 or two threads toward the outside of the seam (toward the outer edge).

You know, that's something that I just can't be bothered with. Maybe I'm wrong but I just do the regular quarter inch.

Maybe the reason for saying "scant" is that some sewers use a "generous" 1/4 inch - and then the block ends up being too small.

One or two threads. Not something to be too concerned about :-). BTW, you are not dumb; just learning (smile).

Just wish I could get consistent seams... but do like the the scant 1/4" best..

All of the above answers with one addtional thought. Some patterns demand such high accuracy, and usually specify a scant 1/4", that it's best to follow their instructions. Other patterns, it's not all that critical.

Me too. I tried scant once and none of the blocks fit exact and I'm picky about fitting exactly. I;m sure cause my scants weren't all the same.

I just use quarter inch and not bother with a couple of threads.