First thing I'd do is trim that trigger guard.
For IDPA I think the entire trigger guard has to be covered so trimming the holster in that area would make it illegal for that game. I have Ready Tactical holsters for K and N Frames and the part of the holster that covers the trigger guard doesn't get in the way at all.
You know that holster is a long way from fully covering the trigger of the firearm.
It also puts the rear of the cylinder below the halfway point of the belt. Either one of those reasons will DQ that holster today.
the DOH section can be removed.