Thought I would answer my own post. Below is review of a rollover blade. Cost: $1125. Model: LPRO2572. Bot new May 2003.
Was getting ready to purchase a straight box blade but saw the rollover type in some literature. Rented a Woods rollover to test and found it much superior to a straight box blade.
The Woods had a metal brace/support running from the middle (up/down) of the moldboard to the middle of the side plate which tended to clog easily (moist soil sticking between the brace and the moldboard/side plates. The Landpride model did not have that yet seemed just as sturdy.
The rollover allows forward scraping without rippers interfering, backfilling with side plates to keep dirt in, or, just ripping alone. It takes only seconds to switch, thus you can rip, flip the blade, then scrape. If soil is loose enough, and you don't need the rippers you can just blade. Switching (raising/lowering/removing) the rippers on a standard fixed box blade is a pain.
The RO2572 seems very sturdily built and looks like it will last indefinately. The upper/lower edges of the moldboard can be reversed or replaced. In addition, the teeth on the end of the rippers are replaceable. So, all wearing edges can be kept new.
The only weakness is that there are no grease nipples at the bearing points, however, the fit is loose and you can easily spray litium grease into all pivot areas.
Although the price was 2 - 2 1/2 times a straight box blade it is well worth the extra money when you calculate how many cubic yards per hour/day you can move with it vs the straight box blade. In addition, you will get some of the additional cost back on resale.
JEH
