my jd L111 IS 4 YRS. OLD AND LIKE YOURS IT HAS BEEN A STURDY RIDER I ALSO USE IT COMMERCIALLY.IT ALSO SUFFERS FROM LEAF BLOWOUT AT THE 1:00 POSITION ON THE DECK. I CHECKED INTO IT A LITTLE LAST YEAR ABOUT AN ANTI BLOWOUT KIT FOR THE DECK TO MINIMIZE THAT PROBLEM BUT I DONT HAVE THE PART NUMBER.IF I REMEMBER RIGHT IT WAS ABOUT 50 BUCKS OR SO.AS FAR AS THE CLUMPS, MY DECK MULCHES FINE PROBABLY CAUSE I CLEAN THE DECK AND RESHARPEN THE BLADE EVERY THIRD OUTING OR SOONER DURING THE WET SEASON. AND THE COLLECTION(BAGGER)TUBE DOES CLOG QUITE A BIT JUST SLOW DOWN OR TAKE 1/2 SWIPES ON THE YARD. IM LOOKING INTO GETTING A PRO STYLE PULL BEHIND TRAILOR W/SEPARATE MOTOR FOR SUCKING LEAVES. GOOD LUCK BTW JD HAS INTRODUCED 3 NEW PUSHERS AND A COMMERCIAL PUSHER COMING IN JULY/AUG.

Thank you for the info. I had asked the JD dealer if they had something to aid in leaf p/u, they actually looked at me strange with my problems I spoke about and had nothing (product or advise) to offer. I will seek out this kit you have referenced. I kind of think my mulching problem stems from having a 3 blade deck. I do clean the undercarriage however not as often as you do, as well I only sharpen the blade once per year. I cut roughly 2/3 of an acre, I use mulching blades, cut high and move pretty slow, still have the problem right out of the gate w/ clumping.