C hing, this is our track layout of the month. We run stock motor, so speed is not the key. 98mm just not fast enough to go around all the corners (at least for my driving). Not sure about Reflex as I buy from local store.
We have Mini-Z Race on tomorrow (HKT 2012-03-03 18:00) and I should make a post and upload some photos here to reporting the status of race. You may join us (Watch photos and add comments) and happy together!