Cisco Switching/Routing :: 3750 - Public VLAN Routing?

I have a quick query which i need ratified before proceeding.  I have the following scenario -
 
Two Cisco 3750v2 switches with stackwiseISP allocated block of /26 (64 addresses)8 customers each with a VLAN and SVIInternet facing VLAN and SVIDefault route to ISP router Lets say the ISP has given me the network range 10.10.10.0/26 (we'll assume this is routable on the internet for the purposes of this example) and a default gateway to the internet of 10.10.10.1 within this range.  I have configured a public facing VLAN as follows -
 
VLAN 300
name PUBLIC
 int VLAN 300
IP Address 10.10.10.2 255.255.255.252
 
I have then created a default route as follows -
 
ip route 0.0.0.0 0.0.0.0  10.10.10.1
 
With this configured, the switch can successfully route upstream to the internet with no problems.  I have then moved onto the customers and depending on what service they have purchased, I have subnetted the 10.10.10.0/26 range into smaller subnets.  See as follows -
 
Customer A - 10.10.10.4/30
Gateway IP - 10.10.10.5
Useable IPs - 10.10.10.6
 Customer B - 10.10.10.8/29
Gateway IP - 10.10.10.9
Useable IPs - 10.10.10.10 - 10.10.10.14
 
This continues for each customer depending on how many IP's the have purchased.  I have then assigned these IP ranges to a customer VLAN and SVI as follows -
 
Customer A
 VLAN 10
name CUST-A-VLAN
 int VLAN 10
ip address 10.10.10.5 255.255.255.252

[code].....
 
It is then up to the customer as to what equipment they use and how they NAT or firewall their internal networks.