so I have a league starting tonight.

I usually use Dash and 2 B wings or BBBBZ,

however the league starts at 100 then escalates to 150 but there are no changes allowed.

I was thinking about using the below and then expanding that to include the B wings later on.

95 points

Pilots ------

Dash Rendar (56) YT-2400 Freighter (36), Lone Wolf (2), Heavy Laser Cannon (7), R2-D2 (4), Outrider (5), Anti-Pursuit Lasers (2)

Miranda Doni (39) K-Wing (29), Twin Laser Turret (6), Tactician (2), Advanced SLAM (2)

what do people think. Is this viable or should i stick to the Dash and B wing list?

Based strictly on the format, that of adding ships only, I'd recommend keeping the list that you know and design your game-play around that. Thus, I might start with the base you already like (Dash and B's) because they are your go-to list. Then, for extra punch add the K for the next round(s).

Looking at it, Dash plus the single K-wing seems a little under-powered for the first round. You'll be behind the firepower curve with just two ships like those. Take my advice with a grain of salt, though.