Sensorless is the way forward in a micro yea.
You won't get the LC motor in the Carisma either. Carisma is a great performer but be prepared to eat through belts and pulleys and have to buy a few hop-ups! In recent months there's been an even amount of LC EMB1's and Carismas in the national A-final so both are as quick in the right hands.
The LC is absolutely bullet proof though! It's built tough, literally NO hop-ups needed and you'll find there's quite a few needed with the Carisma.
Paul Knight is the guy behind Trackside Spares and you can't fault the man