Pin update: Got the "forked" pins today. Was very pleased with the diameter of the metal...very small. So, hope this will help, but will do my best not to stitch over them.
Will also try stopping my machine at an intersection and verify the seam placement. I really don't think we should have to do this...our machines should be sensitive enough to stitch what is there.
Additional note: My SIL was showing one of the ladies at the shop our latest block. It was placed on the counter face up, of course. First thing the sales lady did was flip it over. Go figure!!!
Again, thanks every one for your thoughts!