Totally agree very fiddly!I ended up using tweasers to hold the nuts to get them started,Just built one of these with my son as his first soldering project to see if he enjoyed it (he did, he loves it)
A quick question for you, does it just scroll through the time,temp etc or can you set it to stay on just the time ? I haven't had time to play with it and the instructions were not the clearest! Sorry to go off topic but was hoping you could answer this as it's begining to become slightly annoying!