You are effectively bringing the plane in TOO slowly.

You do not need the winglets and fin extensions.

The problem is that the plane develops a good amount of lift ( which is normally a good thing ) so as we attempt to land it, we let it get too slow, as we await for it to start decending.

We get "programmed" to do this by normal tractor planes with straighter wings, where this is the norm.

However if we don't let it get slow, the plane will seem to float far too much and you may miss the landing area altogether.

So how do you solve the problem?

In a word, "Spoilerons".

Spoilerons KILL lift ( unlike flaperons ), this increases the decent rate of the plane, but lets you keep the speed up higher so the wing does not stall.

You need to add about 1/8" to 1/4" of up spoileron deflection when you have the spoilerons activated. This will do the trick.

The spoilerons will also help let you do slightly nose high landings, further helping to slow the plane down once it touches down.