surugaya order arrived. it's been a minute since I've built gunpla so I've started putting together the 30mm kits as a warmup. any tips for when I start on my first 30ms? any tricks for getting minimal nubmarks on the sisters?

I'm >>11462315
first 30ms order, how'd I do? I had >>11463169 in my cart but someone bought it as I was checking out. hopefully the 30mm will have pieces I can use for that but if not I can buy the set elsewhere easily enough.
also how the hell can surugaya afford to give free shipping basically every week? shit's stupid expensive nowadays