I think that Leader frame is decent at a decent price. Yes, get rid of those 'tensioner' screws as you will immediately find out how impractical they are upon mounting your wheel. If I were looking for another fixie frame, I'd consider buying this frame. I like the 27.2 seat tube also.....lots of options.

As far as using chain tugs (or tensioners), in general, a properly aligned and secured wheel will not require them.