Will SNAT Pool (with different IP Subnets as Pool Members) select a translation IP based on the default gateway address?

Scenario:

I have a Default Gateway which is pool_gateway that consists of 3 ISP Routers from different telcos (Outbound Load Balancing) / (ex. 203.X.X.1, 204.X.X.1, 205.X.X.1)

I have an Outgoing Wildcard VS configured with SNAT Pool and pool_gateway also as the Pool.

I have a SNAT Pool which consists of 3 Public IP from different telcos. (ex. 203.X.X.2, 204.X.X.2, 205.X.X.2)

Question:

When I hit the VS and translated me to a Public IP address from SNAT Pool, does F5 selects the Pool Member (from pool_gateway) based on my Public SNAT IP?

Ex. When I'm translated to 203.X.X.2, does the VS will direct me to 203.X.X.1? or it will Load Balance me to the Pool with a translation of 203.X.X.2?