I do all of my quilts on treadles and I do not think I will ever use any other type of machine to be honest with you. But as for tips I really do not have any other than take your time and enjoy the process.
For me making a quilt on a treadle is the most relaxing experience ever. When I step into my studio and start sewing it is like I stepped back in time to the early 1900's and it just stands still. I am in my own world and nothing else matters. If you have seen my studio you will see I have 19 vintage machines that I can use for my central treadle and there are lots of vintage items to go along with them sitting around. All of that just adds to the experience.
Billy