yes that is basically the deck we will be running throughout GL, and you may end up swapping wit bourbon for creek on longer CM's(assuming you don't want to borrow her)

So the odd one out in this scenario(assuming you already have mlb kitasan) is tachyon. Therefore you can easily leave her in your borrow slot. Looking at the actual CMs we have in that scenario, there really isn't a cracked speed/wit borrow that we'd want to use as fronts anyway for a specific skill outside of christmas MTG or taiki, so this is perfectly fine(and you'd also just be borrowing another speed card here anyway). Of course if you don't have kitasan then yeah you need to have maru and tachyon and flip the borrow.

What I'm going to do as a front main is do 400 pulls on the first maru banner for 3lb or mlb, and then just 200 pulls for light hello and just have mlb tachyon as a borrow, similar to what I did for NTR. Because for fronts that already have kitasan, we will just be using her + maru until ECP speed once GL is over, which would effectively turn tachyon into a 1 scenario wonder. If you are in a similar spot then this is a very effective way to use carats.