Hi craig , I do have Heller's kit number 80369 , Mil Mi-24 Hind A/D in my stash
As the instructions show you have the option of building the early A version or the D model . The clear parts for the canopy aren't too thick and the frame lines around the canopy are quite good too .
I have only ever built some Mi-8s , so I'm not able to tell you how the kit fits together , all the panel lines are raised and there wasn't that much excess flash on the sprue's
Sorry I couldn't be of more help , hopfully some other FSM members with a lot more knowlege and experience on the Mi-24 can provide some more assistance
Kind regards John