Harveer !
I am using this
Dubro Fuel Tubing for the tank, quite supple and a nice one, and also i wire lock the clunk end (Both ends in fact) with a 1 mm copper wire (If you cant find some do let me know, will send it to you)
Cluck line came out in-flight
It very kind of you gusty, i will definitely ask for it if needed. Thanx.
It happened due to 30% nitro mix, it's hard the silicone tube. I used to change all tubing in 12 months max but this time it came out early. I put the sleeve on both sides of same DIA. tube but forgot to click some pix before assembling the tank.