hip thrust machine?

TL:DR, what's better for glute training, matrix glute builder or booty builder v8?

hihi! so my gym now has 2x glute machines. One is a matrix glute builder machine they've had for years, which I use. It's like a padded bar and you load the plates on the side. I've used it for about 6 months and I've barely climbed weight, I've gone from no plate (machine weight is about 22.5kg) to a 15kg plate, which is fine but I was hoping for more gains over 6 months. I've been told as a 5ft1 girlie that these machines are just not built for people my height, but in the last few months I've managed to find a foot/shoulder placement where I really feel activation in my glutes.

Now, they've just added a booty builder v8, which is like a belted machine. It's so much more adjustable, with it's sliding bench and various belt lengths. I tried it out and it was really confusing😂 and just felt weird and off. I'm sure I could get used to it if I use it enough.

Basically, which one would you recommend? I prefer to use the machines over barbell as I can just never access a barbell at my gym and I need to be in and out as quick as poss.