I think this applies to both home machine and LA quilting. Is it possible to use a different color thread in the bobbin without having little "dots" show up on the other side? I can't seem to do it at home and my LA quilters say it is nearly impossible for them to avoid having these dots show up. Sometimes it isn't important, depending on colors, but other times it is distracting and rather messy looking.
The other question is mostly a LA question. Frequently I like to include extra blocks from the front into the backing; often I want to center these blocks. But the LA quilter says it is very difficult if not impossible to ensure that the blocks will truly end up centered on the back. Any thoughts on this?