Your domain will remain with your current domain registrar unless you choose to transfer it to Dropals. If you keep the domain at your current registrar, then just update the nameservers with Dropals to your current registrar's nameservers.
Transferring your domain to Dropals will automatically set your domain up with the Dropals name servers required for your hosting account.
In general, your domain name will use Dropals hosting regardless of how you choose to manage it. Whether or not you transfer your domain name to Dropals is a matter of personal preference.
In the case where you feel Dropals would offer you a better price on domain registration, you would continue using your existing registrar and just update your domain's nameservers. The domain name would be transferred if you feel Dropals would offer a better domain registration price than your current provider.
It usually takes less than five days for domain name transfers to complete, depending on the losing registrar. For domain name updates, update the nameservers for the domain you wish to use with your new hosting account.
