Hi Ice.

My field isn't exactly smooth. We share it with farm stock so it does get lumpy. Even the Pattern guys have problems with their retracts when they fly off it.

The only models that don't run into strife are those with fixed gear of pneumatic retracts.

I haven't seen a review of the GSP/CM-PRO P40, only the Kyosho P40 with Hobbico retracts fitted.

The review was posiitve, but remember it was a magazine review.

What swayed me to the CM-PRO/GSP version was the fact that "Flair" in the United Kingdom market the kit under their name. And from my experience, Flair don't touch garbage.

I would love it for GSP/CM-PRO to do a 1.20 4 stroke sized P40.