March could be the best uncrowded waves ever or expensive ankle biters.
Would think too early and risky for the Telos area but Aloita Resort has a larger amount of access to swell magnets, locally Iceland's / 7 Palms and you can also travel to Lances left or Burger World for day trips used to be around $140 US for the day split between everyone on the boat.
Have stayed at Aloita for a couple of trips management has changed hands since I was there and I haven't heard of any complaints.
When staying in Padang (you will have to over night on the way in/out) I always stay the Mecure (book ahead $70 to 80 / night) stayed a number of other joints cheap/expensive and always some fu(king drama of some sort.
Up to you to let the mob book accommodation / airport pickup / ferry etc I did the 1st trip but now do all that myself.
Having surfed around a bit Oz, Indo, US, Mexico, central / South America and Pacific (well Vanuatu doesn't really count :-) ) the Mentawai in full swing is next level there is nothing and I fu(king mean absolutely nothing that comes close when it glasses of and fires
Any other info just yell out
PS 6 to 8 days just doesn't cut it tell the missus for the man she wants you to be, you have to go for a min 10 to 14 days and then she will only love you more


Pic below I have posted before me going left "best 2 hours of my life"