I've had exactly the same experience.. but eventually passed the class 1 last month..
I saw a great increase in the FEV results from getting my class 2 application rejected (!) to recieving my class 1.
This is what contributed to improving my FEV results:
1 Started running regularly
Better general condition and lung capacity should theoretically not improve things much, as asthma is about restriction of airflow from lungs and up.
Your result will repend on how they test it. If they just let you run for a while, you will be less exhausted and perform better after test if you're fit. However, if they are thorough, they let you run until you reach a specific pulse rate, and you will see less improvement. (theoretically none, according to my specialist, but I have trouble believing that..)
2 Lost weight (7kgs)
With asthma, losing fat around the neck area might contribute to expanding your air passage. The effect is minimal if you're skinny already, though. I'm not at all overweight, but the weightloss came with the excersize, so who knows..
3 Got a better allergy medicine
Effectively removed most of my allergy symptoms, which used to affect my asthma somehow.
4 Moved from old mold infested house
Asthma condition developed while living there...
I don't know which of these four changes improved things the most. I've asked all the medical personnell I've encountered while doing the aviation medicals, and they say it might be any/all of them..
On more thing: You can actually improve your score a whole lot by practising using that measuring device as well. The specialist I went to has even prescribed devices for practise to several clients!
So my advice is - don't give up just yet!
