XDM mags + Dawson HiCap basepad

[dsu96]

I recently purchased the Dawson extended capacity basepads and Grams guts for my XDM .40 mags.  On the XDM mags, there's a little indentation on the front of the mag at the bottom.  With stock parts, this isn't a problem and doesn't interfere with anything.

 

However, I'm thinking I need to grind this indentation away in order to use the Dawson base pads...not wanting the follower to get hung up on it.  At one time, I thought I read a post (either here or somewhere else) that indicated they had to grind the indentation down...but I can't seem to find it.

 

I did load the mag up with 20 rounds, and was able to manually strip a round at a time from the mag without any hangups....but have yet to run a full mag through the gun.

 

Anyone have any experience with this setup that could advise me as to whether I need to grind that indentation down or not?  TIA.