I need a super transparent Buffer pedal

[ricknote]

I have a $100 gift card for Guitar Center.

I just bought a Loop-Master bypass pedal so every pedal I
have is now "true bypass".

I'm looking for the cleanest transparent buffer pedal I can find at GC.

These are the ones I was able to find:
1. MXR Custom Audio Electronics MC-401 Boost Pedal
2. Radial Engineering BigShot PB1 Class-A Power Booster
3. Seymour Duncan SFX-01 Pickup Booster Effects Pedal

Has anyone used any of these?

Thanks,
Rick

[scotch]

I have used the CAE/MXR. It's great!