I have owned and flown the extra 60 for about 5 weeks and must say the quality of the whole kit was great.

i replaced the tank thought as the one that is supplied is only an 8 Oz it was replaced with a 12Oz, This gives me 15 Mins with an Irvine 61( What an engine) it pulls my extra vertical untill you can no longer see it(WOW).

One problem i Have is the when i pull up hard in to vertical the model screws hard out to the right i belive this is because the whole of the elevator is twisting. but apart from that the kit is GREAT.