You have to use the swivel adapters with the YJ 41, i never had any problems with the 41's but preffer the DC ball valve manifold now.
I had nothing but problems with the Sherman, its an expensive paperweight now.
First problem i had was they valves weren't seating, i called Jim B. and he said to take some channel locks to them to help them seat initially, no problems after that but you really shouldn't have to crack down on them to seat, this was one of the first production runs so it was probably resolved.
Plus the revised handles where knuckle busters with the sharp edges and you really had to torque down on the handles to get them to seat (the original designed handles were awesome, knobbed but more smooth)
Second main problem i had with them i decided to try and pull a vac through the manifold ( i never pull through the manifold unless i have to but i decided to give it a try) Some how the c-clip that holds the handle on snapped off and the valve sucked shut, i ended up loosing the vac trying to reconnect the handle.
I think that happened on a small 7 ton unit but still it shouldn't have happened at all.
I had more problems than that but those are the top two that stick in my mind.
I think you will like the DC ball valve mani, its simple (like the YJ 41, just with ball valves) that was my go t manifold and i was use to "thumbing" the knobs to throttle reffer, the change to ball valves is easy but takes a little getting use to since its more sensitive or easier to overfeed compared to what your use to.
And i bet the blu vac will change the way you pull your vac's, it did for me anyway.
My 13 year old YJ 6cfm pump, with 7 year old YJ super evac kit, is plenty fast, and my YJ69075 micron gauge still works great.
After my last post, I brought my vacuum gear in from the truck and cleaned everything, replaced seals, flushed the pump out, and tested it.
Once business picks back up, and we are actually selling some systems again, I'll hit my boss up for some new evacuation gear, like a TEZ8 and BluVac.
I'm hoping to get a Flir i7 to keep on my truck this year too, so I don't want to ask for to much. ;)
I also am lusting over the wireless setup that Metreco is about to start selling in the US market too...
I bought an Appion G5twin and a TEZ8 last May... You will enjoy the TEZ8!
I was kinda dissapointed with the G5... I have to use a cooling coil along with it when working with 410... or it takes forever to draw the gas out. Pump is great on liquid... just slow on gas.
One nice thing about both Appions: They weigh a lot less than other units!