Joining clans that only play on one server is pointless and not very fun, of course people who play on one server forever will disagree but it's not much of fun. Knowing samp top clans and playing with them is FUN. Fighting and chilling with ridiculously skilled players is pure awesomeness. Of course, that implies on players who look for competition in samp like myself and few (3 maximum) of PTP regulars.
Point is, if you play only ptp to have fun only and chill with friends then you don't need to join any clan.
But if you are a competition type of a player and wanna do clanwars and clan invasions then I recommend you to look for a clan out of ptp 
One question???
Finisher in your begining time you Joined many clans and with time you gone to a upper level management too...So at that time you didnt even think of such competitions in a whole SAMP you looking for, these days...Everyone has a some beginning so better he start with some...
+ with time and skills he can think like you too some day
