Well, there was a period when i was buying about 100 models per month (1:500, 1:400, 1:200 military). They were so many models that, very often i did not check them. I was use to check just 1:500 models because (WRONG THOUGHT!) i thought that only Herpa and 1:500 scale had a bad quality check. Then i understood than even 1:400 scale was full of flaws, errors, quality check issues and so on. Then, in the previous house, i had few space for storage so i was desperately searching for space and this made the control go into the background as i was sure that the model was in the box and would not fly away!