Hi again all, first time back since I repowered my JD 318 w/Honda GX620. I also have an HRT216 Harmony PUSH MOWER that I use to cut smaller areas of the lawn and for trim work where the 318 can't maneuver. Pushing is also great for keeping this old power plant in shape too! The push mower has TWIN mulching blades...one blade over the other separated by about 1/4" between the two cutting areas of the blades. H calls this their "MicroCut System". These are an amazing grass cutting, engineering marvel. No matter the height of the grass, the cuttings /discharge are always reduced to a fine mulch that never clumps, and more importantly, decomposes quicker to get all the nitrogen back into the soil sooner. I would like to get similar mulching results from my 47" JD 318, 3-blade cutting deck. This just doesn't happen with any of the 3x16" blades I have (mulching, gator, etc.) on the 318. Does anyone know if there is anything out there that has a TWIN blade system that are 16" length? The shortest length currently available is 19.5 for the 21" H mowers. Or, do any of you 'tinkerers' out there want to give it a try...cutting and forming some blades that could get the same results? PS the 21st century blades are made from 'spring steel' and can be lighter; last longer than the old heavy and lugging JD blades. The ole Onan comes to mind. :thumb: Even 21" twin blades made of newer materials don't weigh as much as a single 16" JD replacement blade. I know, I sharpen often to cut my 1 acre lawn. I also think about how a lighter, more efficient blade system could affect the deck spindle bearings, belts, etc. Less wear and tear? I believe we could improve performance of the cutting system and get the same satisfaction as "repowering" the older JD models. My 318 with a newer power plant is the best thing I've done. Envy of the neighborhood. Thanks to all the help from members of this great forum, especially T.H.E. for working me through the re-power. 'Continuous Improvement' is what it's all about! Regards EdMc :usa: