Will this pose a problem?

Used to have it vertical with no issues but decided to lay it horizontal

Should work fine. I have mine all bundled up in a coil and zip tied and never had an issue.

It should be fine. My antenna broke off and is only about 1/2 inch long. It works fine indoors on carpet but I haven't tried it outside on a large track yet. Not that it matters but it's on a bd7 too

Thanks for the feedback

I run mine flat on the chassis and run outdoors and a good size track. The Futaba 4pls has the signal strength in the corner of the display and even on the far side of the track it shows full bars