I wouldn't ever use it as a primary method. Just something if IWB wasn't an option for whatever reason. The best method is the one knee draw that I've done.Do you think you will get a full "A" license to carry? MA is hit and miss as far as cities that give out the full A license unrestricted.
I hope it works out for you if there's no way you can carry IWB! Good luck on the A license.