Does it make sense to buy on Saxo and then transfer to DBS Vickers for custody?

I'm keen to buy global ETFs via Saxo due to their lower trading charges.

Saxo charges 0.12% of total assets annually for custodian fees. Which works out to about $120/year or $10/month when your assets reach $100k.

However, DBS Vickers offers a rate of $2/counter/month for custodian fees, regardless of asset value.

So does it make sense to trade with Saxo all the way till assets reach 100k, and then transfer (with fees of course) to DBS Vickers thereafter to reduce custodian fees?