I plant winter rye for my cows in the fall and usually follow up with millet in the spring/early summer and after the cows have walked and packed it down tight my 10' Bush Hog leveling harrow has a tough time tearing the ground back up to get it in good enough condition for me to plant it back, I have borrowed an offset and it will get the ground in good enough shape that I can make one pass with it and wait a couple of weeks and run back over it with my leveling harrow and it's smooth and ready to plant rye or millet. When I try to get the ground ready with multiple passes with the leveling harrow it just seems to roll up in sheets and make a mess.
Throwing out alternative ideas:
1.
What is the pan diameter and pan spacing on your "leveling harrow"?
2.
Have you experimented with adjusting the front and rear gang angles, individually, on your "leveling harrow"?
3.
Are the pans on your "leveling harrow" notched or smooth?
I wonder if an
easily adjustable Tandem Disc Harrow with 22" or 24" diameter pans and
9" pan spacing (or 9" spacing nearest the tractor and 7-1/2" spacing in the rear gang, as offered by Monroe Tufline.) might not satisfy your needs and allow you to maintain and store just one implement. These Tandem Disc harrows are 1,600 pounds to 2,700 pounds in weight. Cutting in crop stubble is a SECONDARY tillage action. A correctly selected Tandem Disc Harrow should do it.
Perhaps you need pan scrapers.....
It is pretty clear following Disc Harrow posts on T-B-N that many, perhaps most, Tandem Disc Harrow owners set both gangs at the most aggressive angles when the Disc Harrow is delivered and never experiment with adjusting the gangs.
I have a Monroe Tuline 9"~7-1/2" spaced Disc Harrow. It has the adjustment holes in the gang lever and is quite fast to adjust; just one pin to remove to adjust the front gang and an identical pin to remove to adjust the rear gang.
TANDEM DISC HARROW ADJUSTMENT LINK:
http://www.tractorbynet.com/forums/...ing-three-point-hitch-mounted.html?highlight=
I have the business phone number for Zack Frachiseur, Tufline's SE Field Rep. As Tufline makes both well regarded Tandem and Offset Disc Harrows he would be good for you to speak to. Let me know. I will send you Zacks phone number via Private Message. Zack is a Disc/Offset Harrow pro.