i have a texan,great looking plane i wouldnt worry about the instructions, i only used mine to show me where everything is goin to go and ofcourse i did some modifications as i was building the plane if your a good builder you should know this,
i powered my texan with an Os 50.... lotts of power and combined with a 3 bladed 11/7 prop i have no prob getting off the ground.
one thing i suggest is keep that speed up specially if you have to make a turn for an approach.. this plane is very unforgiving when it comes to a stall,i found out the hard way,
it was the planes second flight and as i did a pass over the field the engine quit as i realized this i lowered the gear,as the gear came down the plane stalled it happened so fast my hart skipped a beat,then the right wing just dropped and nosed over,i kept the nose down so i could pick up speed levelled her up and landed her down wind with no damage to the plane,just added a couple of gray hairs on my head after that incident,and this only took 15 seconds
now every time i fly her i keep that speed up
good luck with yours