Been using Gardiner medium soft cill brushes for the last year . Great brushes only ones we use . But I’m finding em too heavy , but the lads love em and don’t want owt else , they are younger and fitter than me . So I went and got an extreme cill brush this morning. Used it a couple of hours and very happy with it , except a bit bumpy on the edge of some frames . Are the bumpers any good . Forgot to get some to try . Are they any good . ? I’m not being tight , but it means another trip over to my local shop if they are no good . Anyone use em ?