Is this config OK?

Dear colleagues,

I am planning to use a M4250 switch for NDI and internet. I have created 2 VLANs, as follows:

Default VLAN (1): 192.168.50.2. It is used for control and internet. I have set it as static with DHCP server and DNS

NDI VLAN (10): 192.168.10.2. Used for NDI devices. It is set as static with DHCP server and no DNS, so devices in this VLAN can't access internet. 

In my Peplink router, I have set 2 VLANs as well:

Default VLAN: 192.168.50.1
NDI VLAN: 192.168.10.1

Inter-VLAN is enabled on both

My question is:

When configuring the Default VLAN on the Netgear switch, Does it make sense to choose 192.168.50.2 as the VLAN IP address, since my Gateway is 192.168.50.1? (see attached picture)

I have seen people use the same IP for both VLAN address and Gateway, and I am confused here. 

Would the same thing apply to the NDI VLAN? (choosing 10.2 and leaving 10.1 for the Gateway)

Thanks a lot,

Ignacio