I have been using an Adler 105-25mo for sewing straps. Typical thickness being sewn is about 16-17oz of latigo leather with a preferred thread size of 207 using a size 24 needle. I am wanting to get into more than just straps and thinking of going to a flat bed walking foot like the Consew 255rb3, juki 1541S, maybe the new Weaver 2670. I know the leather will fit under the presser foot, however It is my understanding that these machines only recommend size 138 thread. I would like help from anyone out there in leather land that knows if any of these machines could handle size 207 or recommend one that does that may be in the general price range of $1500-$3000. I was hoping that someone could say that if you set it up just right that any of these could handle it without constant thread issues. I have talked to some sales people, but I want to hear from users. All recommendations or advice welcome. I added a pic of the straps just to get a sense of some of the work. Thanks in advance.