I’m quite familiar with the Walker/Lincoln/Hein Werner lineage of jacks. I have no experience with the Carlyle jack, but the dual piston design is so common In the consumer market these days, I’m assuming it’s similar to others. If I we’re buying, I would buy the Balkamp, the rebranded HW93642. my reasoning would be that the 93642 Jack has been around since the 1940’s and has a reputation for durability. Plus, it has my preferred u cup seals on the main ram and the pump piston. IMHO the sale price of $289 is very good compared to what you can find a 93642. Are you sure they’re not going to slap on an extra $129 shipping?
The dual piston rapid lift imported design found in the Carlyle was first seen around 2010-ish. I cross referenced the Napa stock number, and it looks like the Carlyle is a rebranded Sunex Jack, so in the same family as Arcan, NOS, KTI, etc...When I looked at the parts diagram, they’ve hidden the type of seals used in the “power unit”. IMHO, the original list price of $350 is way overpriced, and the sale price brings the jack back into reasonable, similar in price as the 2 ton aluminum Arcan or NOS jacks. FWIW, I know in Alaska you’re probably limited in retailers that sell jacks, I don’t know if you have a Costco where you might find Arcan as an alternative.
Overall, I think the HW will be a more durable jack, and the Carlyle will be a more convenient jack to use:
You will notice That the HW will have a vented reservoir, while the carlyle will have either a screw or rubber plug on the reservoir hole. The vented reservoir will allow Jack oil to leak out during shipping if the box is upside down. Best to check your oil level once you get the Jack.
You will find that the handle/yoke engages the pump piston later with the HW, maybe around 30-45 degrees to parallel with the ground. What this does is make you crouch or kneel down when initially pumping to the jack to reach your jack point. You’ll be able to stand upright with the Carlyle, which is more comfortable IMHO. On the other hand, once you’re lifting the car, on the HW the handle will be lower in a position where you can put your weight on the handle easier, with a shorter stroke needed for each full pump (It’s like a 1.5-2 ft stroke at the end of the handle to get a full pump). Also, if the Jack is far deep under a vehicle to reach the Jack point, sometimes there’s less room under the car to be able to swing the jack handle - So you can still get a near full pump with less handle stroke on the HW compared to the Carlyle. You’ll also notice that the HW lacks a return torsion spring on the handle, so sometimes it could feel more difficult to lift the handle up from a pump than pushing down.
The dual pistons rapid lift the Carlyle has certainly will lift faster when there is no load applied. the way the dual pistons work is when there is no load on the jack, both pistons pump oil from the reservoir into the main ram cylinder. Once you start lifting the car, the bigger piston will stop working and “bypass” leaving only the smaller piston to pump oil from the reservoir to the main ram cylinder. You’re optimizing Pascal’s law. So in effect when there is no load you get fast lift, little force multiplication ... and when there is a load, you get slower lift, with lots of force multiplication. (On the other hand, I get a chuckle when I see you tube videos that do unboxing reviews and they are amazed that their jack “only takes 4 pumps to reach full height!” Yeah, you’re only lifting air. Better would be to count pumps to go from low position to the car, and then have a separate pump count from after touching the car to full height.)
An aluminum jack will be lighter. Think about how you’re going to use the jack. Some people need to drag the jack across a lumpy gravel driveway, or need to lift the jack in and out of a truck. Aluminum jacks will be much easier to drag into non optimal situations. Jacks are not just heavy, they are bulky and odd shaped to lift. When on smooth concrete, every new jack I’ve had rolls great.
I think the HW lowers the load smoother than the import dual pump units. It can be felt, but it is only a mild difference. As far as I’m concerned, the “trolley jack” release system sucks. The spider-gear variation of the release system found in a lot of older imports also kinda sucks. The universal joint in both the HW and the Carlyle are a big upgrade in smoothness. The HW also uses a cone shaped “needle valve” while the dual piston import design uses a “ball valve”. Needle valves give a greater control over rate of fluid flow than ball valves, so once the valve opens there are more gradations between just a little open to wide open with a needle valve. Also, the vented reservoir also helps for this, as you’re not fighting against any built up reservoir vacuum.
I apologize for the wall of text above.