A couple of things you need to remember.Looking at the weights has me thinking. The BX2380 will lift 423 lbs with the quick attach. The grapple I am looking at weighs 200 lbs. what I don’t know is how much the quick connect loader bucket weighs that I will take off.
1) Be sure to check the pressure of your hydraulic system. I have mine a bit above spec at 1950 PSI.
2) That 423 pounds is to lift something all the way up. I very seldom lift things that high on my BX23S. When I move logs, rocks or whatever, it is only a few inches to a foot off the ground.
3) Even if you can't lift a log by the FEL cylinders, you can lower the grapple over it, and then roll it back. You will get it off the ground, and can still move it. You just can't lift it any higher.
I have an EA Wicked 55" grapple and I move things (mostly 10 foot logs of different types), that I know weigh a lot more than 500 pounds.
My 2 cents.