Hi,
If you have DNS mapping for the MIP/VIP ips and their A records can be updated dynamical then I don't see any issue. Only you need to consider if there is any asymmetric routing, e,g, traffic cames on the ISP1 and return traffic tries going out via ISP2.
To avoid asymmetric routing you can try using 'unset flow reverse-route clear-text" so the mac of incoming traffic will be cached and return traffic will be sent via same interface.
Thanks,
Vikas