Well, seems the advice of a professional PvM Chaser is needed here. If you want to have a super easy time leveling (at least as easy as it gets) you're going to want to go hybrid. You'll start off using Arrow Storm as your main killing skill. Most people will tell you to level in Nogg Road, but that's not really a good place. Instead, I highly suggest leveling in Niffleheim Field 1. It's far better leveling because the monsters there never stop chasing you, they have great loot, and they don't use any skills while chasing you that could get your position lagged. Use your Intimidate slot to copy Aspersio, and you can pretty easily level there until 130-135 (depending on how patient you are). The method is extremely simple. Gather up as massive a mob as you think you can handle, use Feint Bomb, and then Arrow Storm the instant the cast bar for Feint Bomb disappears. If you've got a Rideword hat, chances are good you'll never even need to use pots, though have some just in case.
Your stats should be something like, medium str (at most), high agi, medium to high int, medium to high dex, low to medium vit (pump it), whatever luk you want. This type of hybridization works well, because by the time you get to 130 or 135 range, you can easily switch over to Shadow Spell at start soloing at places like Nameless Island, Thors Volcano, or Biolabs 2nd floor. 135+ leveling is very slow, but it is doable, so don't give up.
Also, Shadow Chaser can very easily kill at least the low end MVPs, so if you want to do that, it's not impossible, despite what others say. Afterall, I regularly kill Osiris on my 150 SC and only use about 600 Carrots on average for each run.
I think the most important thing though is to really love the SC class and really try to have fun with it. If you're too focused on leveling really fast, it will just be never ending frustration.
If you'd like, I have a pvm/leveling guild that is specifically dedicated to Rogue branch called the Paros Pirates. You can PM me if you're interested.