Here is my problem! Another cutting quality, yes stragglers! Some history first on my SCAG WB Hydro 48" advantage with a Kawi 17: Bought the mower 2nd hand. It's a 2001 bought new in 2002 by a one-man LCO for use on light yards and town cemeteries. The condition was a little rough paint wise but was sound mechanically. I ran it for about 3 months in 2010 and this year. In the spring I did take it locally for a complete tune up (fluid changes, tubes in tires, blade sharpened, couple nuisance items (choke, idle, neutral adjustment) and complete condition check through. Which I receive a "ok, nothing needed" from the SCAG Authorized service shop. Season started off good, nice to have neutral adjusted correctly finally and choke working correctly to start on first pull. This year as the season progressed I noticed an major change in cutting. I seemed to be leaving stragglers and it seemed to be cutting lower on one side (discharge) than the other two blades. I played with blades by repositioning them and swapping which spacers/bolts were on which spindle, etc. No change. That cut difference seem to grow more and more at each cutting. So started playing with air pressure. No dramatic change essentially still cutting one side lower. After much reading through the forum and archive I checked deck pitch, blades were sharpened and checked routinely along with checking air pressure in tires. Last weekend I started looking at the spindles and pulleys as suggested by many in similar threads about poor cutting on SCAGs. Belts are new as they were replaced during the spring tune up as they were slightly dry rotted and glazed (appeared to be original or at least SCAG OEM parts according to service shop). They are tensioned correctly. Also the bottom of the desk is clean and I had very little scrapping to do with it except with heavy wet grass. Deck is not plugged. With belts on it is tough to move the blades and there is some friction sound which I can not isolate on the deck. With the belts off that sound is not present. Pulleys have no play (up & down and side to side) and are quiet and spin freely. The spindles show no signs of play (up & down and side to side) in the them and spin without any odd sounds. The spindle on the discharge shoot spins relatively free, middle one not as free and the far left one spins with more resistance than the middle. I was going to put the belts back on and tension them appropriately and see if I can replicate the friction sound I had before. One item noticed while looking at spindles was the blades appear to not be level with each other showing 1/12th to 2/12th differences. That would explain the cutting pattern I am seeing (one side lower) but does not explain the amount of stragglers I do see. Of course I have asked some of the local guys what they would do and nobody gave me any logical courses of action. One of them said switch the spindles which does not make sense. I think I am off to the dealer for service. But I would like to have idea of what I am dealing with and what potential cost might be. But also hoping someone here might have a suggestion to save me time and money as service is far from quick around here and not looking forward to cutting a 1.65 acres of grass with a 21" mower while I wait but the quality of cut with WB kind of hints I should so something sooner than later. One other item, I did add a grass catcher this year. But cutting pattern is the same with or without the catcher (Rack'em Steel/Aluminum 4.3 cubic foot). I have not used the catcher since July. I did noticed an improvement when I change the spacer configuration but it was not close to what I would like or expect from a SCAG. Last year and start of this year cut with one spacer on the bottom, two on top. Switched recently to two on bottom, one on top. Mower currently has Oregon gator blades and tried Oregon hi lift blades earlier this year but cut was worst. Also if the lawn is long I am cutting twice as the left behind is way beyond just stragglers. Adding the second spacer below helped this a little. I was going to try three on the bottom but spacer are out of stock at the local dealers so waiting on them. Bent deck maybe? Thanks in advance!