You'll already know what I think would be a good idea: add the O-lifts to your repertoire!
It seems to me that the power lifts and exercises on machines are all performed relatively slowly (unless they are purposefully trained in a dynamic way, à la Westside). This is, generally speaking, good for increasing strength but not much good for increasing power.
It is true that, for any individual, the heavier a load is, the slower they will be able to move it; but there is a range over which peak power can be maximised if it is trained for. I see performing the O-lifts as a way to catapult a load high enough into the air to be able to get under and catch it; so it can't be done slowly. You have to overcome gravity for a few brief moments and get yourself under a 'weightless' bar before gravity wins and makes it fall again.
A 600lb deadlifter easily has the strength to be able to clean 400lb, but even a 300lb clean will probably be a challenge for until explosive power is developed. Speed getting under the bar, movement technique and flexibility will all be needed and challenging to attain.
So, when you've been in the habit of training to get stronger, it's quite likely that you are nowhere near as powerful as you could (should!) be. I am very aware that the loads I can C&J and snatch are not yet in the same ball-park as my strength/power lifts, so I have a lot of challenging work ahead of me.
There's also the whole 'power-to-weight ratio' thing, but that only matters if you want to compete.
Many strength and conditioning coaches encourage their athletes to do some form of O-lifting for all the above reasons (there's an element of courage too) so it has to be worth a go, especially as you might be getting back into MMA again.
Now that I'm edging ever closer to a half-century, and having trained with weights on-and-off for many years, Oly lifting is the one thing I wish I'd learnt to do years ago.
I challenge you to get a 300lb clean under your belt.
