I haven't used any of these yet. I already had a 201 .... which is the joy of my life and a 99k[ATTACH=CONFIG]361504[/ATTACH][ATTACH=CONFIG]361505[/ATTACH]. I wasn't planning on getting any of these. I found out that they were being let go and that a Treadle I have been looking for forever might be there. My sewing machine guy was suppose to get them all but when we got there he told me I could just have my treadle for free or I could have the lot for 400.00. Needless to say I took the lot and got my treadle... The picture is the treadle I went for 1886 Fiddle base vibrating shuttle. She is the love of my life now and the reason I have not tried the rest. So how does the 101 compare to the rest. Is it more like the 201 or the 66 and 99.