well... workin on my used trainer... getting it ready for flight... had a couple of questions about it... first of all... its a sig kadet senior, with a magnum .61xl.

question #1 gas tank... i bought a new one... its a dubro 20 ounce, when i started getting in to flying in the late 90's the gas tank in my then trainer had a very thin walled flexible fuel line that did not kink when bent inside the tank... the new dubro i just bought does not... it is standard fuel line... physics and logical reasoning tell me that the this flexy line will (and did) allow the clunk to always drop via gravity the the lowest point in the tank... also where the fuel would be... to always have fuel (untill you run out of course).. but my new tank does not have the ability to do so... i went back to my LHS and looked at a veriety of other tanks (all brands) and they all come with relativly stiff standard fuel line... i talked to the hobby shop owner who has been flying for years and he told me what i thoughts were correct and that it should be thin and flexy at least he has always used tanks with the flexy lines wasnt aware that they had changed the tanks, anyway... there is no way that my current tank would be able to supply fuel in a nose down attitude.. and i cant seem to find any tanks with the thinner flexier tubing, nor can i find the flexy tubing to modify it at three LHS's, what should i do... is the tank correct and im worrying about nothing .. or should i try harder to find right set up... kinda lost on this...

second question, my sig was modified by the PO to have ailerons and flaps... i have been told to keep the ailerons and dump the flaps .. ailerons are about 3"x10" and at the wingtips and the flaps are about 3"x the rest of the wingspan.. should i take them off or secure in place to make trailing edge the same all the way across... i dont think there would be anything wrong with taking them off as they were only adding to the stock wing area.. anyway...

thanks in advance to any feedback and sorry for being so long winded... i appriciate your opinions and insight... thanks again