I've got a Poseidon and it's not bad. Havent really used anything else for sliding most sliding rods are broomsticks anyway. I use a 12ft tiralejo for casting baits for tailor and that's pretty nice.

 Assassin Beach Master or Poseidon Bantam are the top picks. Not super cheap but well worth the price.

Once you get used to the low mount you will cast so much further than before

Rods

Assassin, beachmaster, blade or HMG heavy (I've got the HMG heavy, throws 10 oz easily)

Poseidon, get the heavy or HMG

Purglas 350/6 or 400/6, 

reels

Trinidad 50

Torium 50

saltiga 50

saltist bg 50

Avet hx wide (or raptor, if you have the coin)

then the penn fathom 60 2 speed, (new and untested, but looks the goods)

 I've heard the new Trinidads are mint but never seen one in the flesh. Toriums and saltists are tried and tested and definitely get the job done. May need to upgrade to carbontex drag washers. 

If you do go the torium the 30 should be fine, 50 could be better for peace of mind with the extra line capacity.

thanks guys have been using a torsa 40 and saltist 30 on a sensor surf but i want to go bigger and better im not sure if the torsa 40 is to big or if it just wasnt balenced right on the sensor as its a tiny rod also have a saltiga 50 i can use but thanks for the advice

I got the Purglas 350 /6 with a saltist 50 beautiful combo casts well.

And the Assissin HMG heavy and torium 50, man its a beast and thows that lead a country mile. of the 2 the purglas is easier to cast (smaller rod, smaller reel.

I have static magged both reels and it prevents birds nest with minimal loss of distance.

cheers