I am very glad you found something you like... by all means use them to your hearts content. Fishing is all about confidence in your gear. I have over 2000 spoons...however...like most anglers... it is the few dozen that get used most and 1 or 2 that I will not fish with out, as they are the ones I am confident in because they catch me fish. That is why we all have our own "opinions" as to what works best.
Same goes for the weights.... which I bought from Jos at Angling Outfitters.... As I did the torpedoes and all 8 of my sharks and countless other designs over the past 20 years. I have put them all through a great workout and report what I find...not what I am told to report, weather or not that makes the manufacturer happy. And in my travels, I found the POW's have the best performance/to cost for Lake Erie Fishing... that is a 13 lber in 30-60 feet and where tracking is more important than a foot or so of blowback. In blow back, weight is a big factor to. A 12 lb torpedo will out do a 10 lb POW... but a 16 lb torpedo and a 16 lb POW are very close... and the POW tracks truer and gives you better sonar refraction.
I run the POWs and formerly the sharks, with confidence at Kettle point cause I know they will follow me around the Kettles and reefs without wandering into them and getting hung up. I have never had either wander into other riggers or setups. On lake O... 16 lb POW's now and the old 20 lb sharks were my choice as I wanted less blowback and to keep things straight running. I used the torpedos here with success too...but the fish attraction of the design shape and facets on the Sharks and POWs really does work and noticeably increased my catch ratios. Then there is cost... the POWs are up to 40% cheaper than comparable sharks and similar price as the torpedos.
So...as you can see...much more to think about that just blow back.
On a side note...I love the torpedo slider clips, weighted steel line and 19 strand wire...are simply amazing products!!!