For those not regular Star Citizen users CCU stands for 'Cross Chassis Upgrades' which you can do here....
https://www.robertsspaceindustries.com/pledge/ship-upgrades
So to use this screen shot as an example my Freelancer on the left has the same value as the Hornet in the list on the right, if i didn't already have a Hornet and wanted one or just wanted to try it out i could just do a $0 swap.
If i wanted the Cutlass Red it would have cost me the Freelancer + $10 as it is $120 an my Freelancer is only $110.
Now, as i understand this when this comes into effect if i wanted to swap the Freelancer for the Hornet i would be charged a $5 surcharge effectively making the $110 Hornet cost me $115.
If what Ben says is true and understood that $5 surcharge actually applies to all CCUs, so the $120 Cutlass Red would actually cost me $125.
Whats more everytime i used the CCU it will cost me another $5.
As many of you know i have contributed a lot of positive stuff to this thread, that ^^^^^ that has made my blood boil a little.
If this really was not about money what they would do it make you keep the ship you backed with and allow you to upgraded for the cost of extra value ships but also let you limited time loan other ships of the same or less value of you account holdings.
PS: i bought another ship yesturday, they are still using $1.24 to the £ exchange rates despite the fact that it has been $1.29 to $1.30 now for weeks.