Differences between Hong nor X1 CRT and X1 CRT PRO
 

As per title, is there a thread or listing anywhere that one of you kind people could link for me that lists the differences between the the two different models of the X1 CRTplease!?

A quick google search late last night didn't seem to glean what i was looking for!

Also where's the best place to get upgraded parts for them too!?, I have been using JE spares for a few bits i've bought so far but i've seen odd piccies and listings for parts that were offered on these cars as "upgrades"

Cheers Matt!