I use the very fine pins, and at tricky intersections I do sew over pins, but very, very slowly and by hand to be sure I won't hit it. It does throw your machine off time. The older ones can take it, but our fancy schmancy spoiled little computerized babies cannot! Hummm, kinda makes you wonder, doesn't it???

I remember learning to sew back in the day and we were taught to sew over the pins. I learned on a treadle! I still sew over pins with my old trusty singer and my new old trusty treadle. The old trusty singer I've had for over 40 years and have never had the first problem with it.

I have a Janome 6600 and I sew over pins all the time. NOW I do use a thinner pin and I place them a little to the left.

PS I am only running my machine at between one third and one half speed and I never do it at the start of a seam.

You mean you're suppose to pull'em out before sewing over...
might have to try that, (ya right) but I do at times have to change that broken needle :) only time I've killed the timing is when sewing somthing toooo thick.

I have found that I can sew over pins on my cheap brother but my big brother 1500 doesn't like them AT ALL! I showed it, I quit using it for piecing! lol

I try not to sew over pins of any kind. I have a Janome, nothing fancy, but I don't want to damage my machine.

I have 10 machines: 1 long-arm, 3 singers (1953, 1955 and one I bought 4 years ago brand new), 1 Singer treaddle, 2 Brothers and varied others, 4 sergers, 1 Professional Zig-Zag from like 1940-ish and I have NEVER sewn over a pin. Not once. I've always feared doing it. I've seen people do it but I know I'll do it and break something. But I've heard not to sew over a pin on the new ones because it will knock off your timing.

On the newer machines I'd try not to sew over pins. They don't make 'em like they used to!

I remember clearly in Home Ec class in 1962 that we were taught to sew over pins on the Singer machines we used. Funny that these new fangled fancy machines can't do it!
P.S. I don't sew over them anymore since I bought my new fangled fancy machine.