What do you mean by start to cut more aggressive?
What metric are you looking at Foc at and Hoc? (e.g. Foc=HoC).
This is a brand new reel so I'm going to do my best at repairing it. I really don't want to spend another 200$ on a reel and spend the time replacing it. It seemed to have been cutting really well (at least to me) before I messed it up.
I saw all of the different bedknifes but It's not really clear to me on how they differ? When I replaced my bedknife I replaced it with the original one that it came with (found it in the manual). The only one I was able to find that was different and had a different description was that there was one that was substantially thicker and it would last a lot longer, but at the cost of being able to cut only down to .3". As for the other bedknifes I'm not sure what the differences are.
By cutting more aggressively, I mean that the reel is picking up more of the leaves and standing them up in front of the bedknife before cutting. Especially on a fixed head walk-mower, the more we raise the front roller, the more "rake" we introduce to the overall stance of the mower. This puts the blades of the reel somewhat deeper into the turf than the actual height of cut, which occurs somewhat behind the 6 o'clock position on the reel.
On a floating head mower like the JD 220e, Toro Flex series, Jake Eclipse units, or any tri-plex/fairway mower, the bedknife attitude ("aggressiveness") is adjustable by manipulating the front and rear roller height to give the desired HoC while maintaining the desired bedknife attitude. The bedknife attitude and distance behind center are also controlled by the dimensions of the knife itself, and with some makes, the bedbar/bedshoe (device that you screw the bedknife to) utilized.
All three major greensmower manufacturers put out a ton of information regarding mower setup. Most of the info is focused on putting green setups and ultra-low HoC performance. But the concepts explained apply to higher HoC applications as well. I know Toro's reel setup literature talks quite a bit about fairway mower setups, which is what most closely resembles what most of us are trying to do on our home lawns. If you can study the literature and the equipment, look for what's different on a trim and surrounds reel mower vs a fairway or tee and approach mower vs a greensmower.