Getting hoop tension right without warping the weave
A hoop that is too loose will leave stitches looking uneven; one that is too tight can distort linen. We prefer a firm drum-like surface with the grain still looking square. Check the weave after tightening, then re-check after your first row of stitches — fabric often settles once the needle starts travelling.
If you are working a larger motif, loosen and re-seat the hoop periodically so the worked area does not stay stretched for days. Cotton and linen behave differently; wool crewel grounds usually need a gentler hand than tightly woven cotton.