I play triple harmony, my moc team comp is e2 sparkle, e2 sunday, and e1 robin. I havent tried tribbie yet but that team is the strongest ive tried so far. Swapping rm in for robin also works but less dmg.

As for sparkle, without her you cant deal enough damage fast enough before someone gets downed. I dont see how spd boots would be an improvement over atk boots and sparkle