Yeah, that's what I'd do, too. And you usually have to reposition the figs a little, so they fit really well - and you could use this opportunity to lenghten the arms and legs a little for extra accuracy. If you have the place inside the model, that is - because the interior is pretty cramped and the figs, being a bit smaller, can help you put them inside. Let's also look at the numbers: A man measuring 1,80m would scale to 51,4mm in 1/35. In 1/32 he would be 56,3 mm tall. Suppose we take a pilot that is 52mm tall in 1/32 - then he would scale to 1,63m 1:1. A bit of a shorty, but still realistic. I say as log as he is seated it shouldn't be visible at all. Then again, if you comapare Dragon figures from different sets, they sometimes don't fit together at all, some are extra big, some very small. But nothing a little surgery couldn't fix:
Hope it helps, have a nice day
Paweł