no point to prove Bob, I agree with you. In your case, it's the perfect solution, flushing out the contaminants and giving fresh grease is without doubt the best option, as long as the grease and heat has somewhere to go and it's more controllable. The advantage is you know what you're doing and have worked your system to suit your application, unfortunately that's not always the case...
The point I was making is that in some applications, too much can cause problems, in our case it caused over heating as it had nowhere to go.
Exactly - had trouble convincing others of similar thing. If the design allows for excess grease to escape, or knackered seals do, then all good.
Had an interesting run of failures a while ago - bearing design would allow excess grease to escape, but it also needed regular shots to replenish - machine has an automatic system (SKF/Lincoln) and injectors all over themachine put add as required at intervals as determined by run time. Works well unless the plant use the wrong grease. Or wrong air pressure to drive the system. Or don't purge air. So if you "grease" with a shot of air, you blow the grease remaining out . . . bearing fails seizes, wipe out a 2 grand cam, requires 4 hrs of downtime to replace, loses few hundred thousand production . . . repeat a week later . . .