Re: Sailrite LS-1 or LSZ-1?
99.9 percent of the sewing my wife did (MMR here on sailnet - see her posts about stackpack design and construction) was with a regular sub 200 dollar machine. The rest was a needle and thread.
Here's the kicker - we had a LSZ1 - every time she went to use it the calibration went screwy and required adjustment.
If you aren't sewing sails and or 10+ layers you just don't need a overpriced cast iron weight.
Lessons learned are opportunities earned.