I was about to say a gen7 as well. I've only used a gen6 which is an amazing all arounder with no adjustment, but I never needed it. I have heard that the stroke adjustments work great and you can choose between a hard clip for color or a soft clip for dampening for lining or BnG. They do have metal body versions both SS and bronze though in limited numbers. Of course there is the Whip which is the most easily and widestest range adjustable of all. If its only stroke length and not give adjustments, then a Kubin cranker is the best liner I ever used including coils and damn capable at everything else and a great value. The adjustable stigma hyper is also an amazing machine, a lot like the swashdrive gen7. Hope this helps...