AIRFORCE, I just flew mine this weekend it was awsome i added a os 61 in it with a pitts muffler and its a fast one i orginaly had a 12x6 prop on it but it was landing way to fast,so i proped it with a 13x4 and it slows down alot better on landings i dont now if this is your first low wing but its a fast plane with those combos its a hand full if you havent flow this type before i suggest some one with the exsperence fly it first its a nice plane........as to your answer on the bubbles mine was the same way, i just used my heat gun just becarful not tto hold the heat on it to long and they will come out.you might want to use a iron on them also,if you have any other questions about it pm me...... good luck