re: band saw help

I have the G555, for the most part I like the saw. I also purchased the six inch riser block witch helps with the resawing. However I have problems resawing, I don’t know if it’s me or the saw. I’m getting better, I’m slowing down working with tensioning and I made a couple of straight cuts. I’m also thinking about rewireing to 220, it made a difference in my table saw.