My measurements have shown that even if you use a TTL greater than 7 you won't get back packages with a TTL > 7 with very high probability ( I talk about 99.9% I haven't calculated that number exactly yet). So you horizon today is "aways" 7 hops in the gntella network.
So cutting out the freeloaders from your searches will give you less hits. Raising the TTL won't help. But as you might know there are other ways how to to priorotize a search/hit ... like eDonkey does.
@blb: Searches contain a TTL time, which is a number of how often the search is forwarded in the network. So the freeloaders will forward the Search if TTL > 1 ... |