Used MT2 shank drill bits or new straight shank

Guys,
I need a 19/32 and 3/4 drill bit. EBay has a few used Sutton MT2 bits and also new Sutton straight shank versions.

There is not a lot of difference in price.

The straight shanked versions have shorter flutes than the used MT2 versions.

My drill press has a MT2 fitting and so does my tailstock.

For the most part (99%) these drills will be used in the lathe.

Is there a difference in quality between the two variants?

My large chuck isn't brilliant (doesn't grip the bits that well) so I'm thinking the forces involved may sway me to the used variant... But then again I don't know how they've been (miss-)treated...

Which would you suggest?

Any thoughts?

Thanks
J


Thx
Jon