Improvised weapons and weapon "features"

So let's say I have a 12 foot rope and I've tied a piton to it, that would make it act as an improvised weapon, and according to the rules, you're supposed to pick the actual weapon which most closely resembles it to use as a model.

In this case, it would be the "rope dart" - which is a 1d4 ranged weapon that you can tug back into your hand. Would the improvised weapon also gain the "tug back" feature therefore?

Or if you use a hammock on a rope as an improvised net weapon, will it ensnare like normal if you hit despite the -4 penalty?

Or a block and tackle on a rope is closest to the Dorn Dergar, does that mean it gains the "choke up and change between reach and adjacent with a move action" ability?

Etc.

I'd say an improvised weapon would inherit any special abilities if you can persuade your GM that it logically should have them. A shepherd's crook might have trip, for example, while the infamous 10' ladder would be a reach weapon. It's a judgment call in each individual case.

The properties would be as improvised as the weapon, one could say.

Crook is stated out in Melee tactics handbook iirc.

So let's say I have a 12 foot rope and I've tied a piton to it, that would make it act as an improvised weapon, and according to the rules, you're supposed to pick the actual weapon which most closely resembles it to use as a model...

Etc.

I Think it is as a model for damage and size catagory you dont improvise a spear you use a pointy stick as a improvised weapon and the GM look at a spear and balance the size and damage around that.

In my opinion, any real fighter is going to improvise a weapon, not just grab an item and use it the same no matter what.

If I pick up a curtain rod with a flourish on the end, I am likely to use it like a spear, not a stick with a heavy end.

If I pick up a 3' metal pipe, I am going to use it like a mace/club and not a short sword.

In my opinion, the actions of the wielder are a major part of what makes something improvisable.

Thanks, the size and damage seem unambiguous, but I'm mainly just wondering if the improvised ones have reach, trip, etc as appropriate.