J.I.M....
Yes, the DWs are a little heavier and a little bulkier, for good reasons. If you ask anyone who owns both DWs and S&Ws in .44 Magnum, and has shot them both, I'd bet any money that 90% would tell you they prefer the DW. They are unbeatable for accuracy, versatility (the owner can change to other barrel lengths himself) and durability. They will last for thousands of full house magnum rounds, whereas the S&Ws won't without needing repairs. There are good reasons DWs were winning 70% of long distance (50 to 200 yards/meters) shooting competitions years ago, put on by the various silhouette shooting clubs all over the US - S&W's were virtually non-existent in these competitions. I know this because I shot the sport for 20+ years. I personally used an 8 3/8" barreled S&W magnum in this sport for a year and a half before I gave up in frustration and went out and bought 2 DWs - one in .44 Magnum and the other in .445 SuperMag. I used them EXCLUSIVELY for the next 8 years and they put the S&W I owned to shame. Sorry that I must sound like a sales manager for the DW company, but I'm just spouting the truth.
Best of luck in your decision making process. We hope to continue to see you posting on this great forum! Please let us all know how things progress with you, even if you do choose the S&W.
Wayne