Neutrik NC Stagebox 20 in 4

I have decided to make a multicore by myself. I have bought Neutrik NC Stagebox 20 in 4 and the sssnake MP24S. For connectors I have bought
NEUTRIK NC3 MXX-B (They are the best for me in every situation).
I was disappointed because multicore wire does not fit to stagebox, It does not fit to this plastic holder before the box and I had to cut some rubber defense from the multicore. After some time of experiments I've finally did the job. If you are not ready to hold the tools in hands than this is not for you!
Next step is to connect wires to stage box. You don't have to weld anything,good, but again you have to work a little to make all things right.
-Easy to use on stage.
-It has no outside XLR stops, only light XLR stops inside, so if you pull wire hardly it will fall of the box probably.
-I've been using it for 6 month and had no problem with connectors.
In Total: Good stagebox but you have to make a lot of work if the wire does not fit to box.

This is the second identical Neutrik stagebox I have bought, for a second multicore, the first is still going strong after 5 years.

So what are the niggles the inhibit me giving it an excellent rating?

1/ The cable gland is not very strong/easy to firmly hold the multicore. This meant that after 2-3 years the multicore tended to pull out and needed rewiring and sticking in place. Since we stuck with epoxy it's been absolutely fine. For the second one I will glue with epoxy from the start.

2/ No easy way of fitting a Harting connector. I know Hartings are generally used on the bigger stage boxes but being able to disconnect the stage box protects it a lot.