Juat greased the gears and oiled the bearings on my symetre 4000. Found it was fairly rough after putting everything back together. Noticed a had to tinker with the screws that enclosed the gear housing to get the gears to run smooth. Too lose and it would woble but too tight and it would lock up. It's a little concerning that the screws aren't tight and could fall off, get lost or worst cause me grief on the water. Guess I will have to wait and see what happens.
I don't recommend the use lock tight. It'll do exactly what it says and if you need to get back inside, for any reason like a blown gear or bearing comes out ect, those screws are so fragile, they'll break from torsion and you'll have to do a lot more work to fix it.
Couple of things might be worth looking at, make sure you are not missing any washers or spacers that might help seat the parts together to make it "flush". Also check to make sure the threads aren't damaged. I haven't played with many reels but they aren't exactly crafted with tungsten steels or aluminium alloy allow anything
so they might be a bit softer than most.
When you are putting the screws back into the reel try putting them in just by hand a little bit until it just bites in, then screw em in one at a time but all together, so do one partly and then do the next... kinda like a tightening sequence for the intake manifold bolts.
This will allow it to sit better and may help.
More likely something is missing or fell out of place and so it's feeling loose.