A different support strut
there is another type of baggage door support that you might be interested in.
It is basically a tightly wound coil spring with little brackets on each end. You put one bracket on the door, one on the inside of the firewall.
When the door is closed, the coil spring is folded in half. When you open the door, it snaps straight, and holds the door open quite nicely.
To close, you just nudge the middle of the spring, and it buckles so it folds in half.
There is a certified version that is used on Beechcraft airplanes that is rediculously expensive. But I bought mine from another supplier for about $10, I forget exactly.
Here are some for sale on Ebay so you can see a picture.
I'm really happy with mine
"The Magic Carpet"
Hobbs 470 in 8 years
also LS-6-15/18 sailplane
VAF donation Dec 2017