hmm, mine are definitely not. My front springs are much harder than my rear. ..I will double check tonight. I was also building a Tamiya TT02 for my son while I was putting this Euro truck together. It would be possible that I mixed the springs up (as they look identical).
I do have one race on my Euro truck and it did handle decently well. I was able to pick up a 3rd spot. ..yet there is some serious bounce (but seems everyone has that). BUT if I have the incorrect springs it may reduce the bounce even more? ...checking it out tonight when I get off work.