I didn't try to say they have awful fitting, just that their engineering isn't as good as their 3d-models. Like on isu-152 1/72 model: great details, but wheels won't come on their positions without sanding, they call it "snap-title kit for beginners". Or gray plastic, that I find rather soft.
In case of Yak-130, I can name such things like "unpolished right wing" where I can see surface like ladder, and "overdetailing of wing bays" those you can't show fully open like on late 1/48 model. So, I must sand that right wing and I'll lose some panel lines that aren't very pronounced (
Anyway, for its money it's a good deal anyway) You can try 1/100 models, they have great details and price for this scale! (Well, except tracks)
Also they said that on su-57 panellines will be more pronounced, so I'm waiting to see it in model shop, on last su-30 they were worse than on su-33(
5. September at 18:09:47