Pretty good drill for soybeans. They have planter units like a regular corn planter so the normal wear points to check for wear. The 1530 uses the same meter for seeding that any JD drill has so the spacing isn't the same as a planter.The 1535 has planter meters I never saw one used, but would guess the spacing would be better than the 1530. They are heavy even when empty I would recommend a front wheel assist with a few weights in front or a coulter cart.
