Perhaps we are over interpreting the safety issue?
I have an older model Fox in .223 with that backward safety and a Model 600 in 7x57 coming.
I admit the thing being counterintuitive at first, but have found it no problem to convert through practise.
Example:
On a Remington 750 we have the side push safety, on a Mauser the wing, on my Marlin the safety is deactivated and the hammer needs pulling, when engaging pigs in the thick stuff.
I switch rifles often - all are equipped with different optics / sights, chambered for different cartridges, loaded with different bullets. I chose the one for the occasion - and have not for a long time been confused.
Assuming the OP want to carry the 602 after DG, the safety issue is just one of practice and handling.
For a safe queen or a 'deer rifle' it becomes a non-issue.
