The 2S is an unbalanced piston and Mares' rental fleet reg. OK for stage bottles, discovery dives and OW classes, but IMO should not be recommended for sale to most OW divers.
OTOH, the Rover is actually a decent second stage when paired with a balanced first stage, so if you were at all interested in staying in the Mares family and getting at least some use out of your existing great, I can suggest 2 options.
Replace the 2S with a new 62X first stage for $420 (DIN or yoke).
Or go with this from Mares' tech line for $600.
It's their flagship first stage paired with one of their adjustable second stages. You can reuse one of your Rovers as the octo. Keep the other Rover as a spare.
All of these share the same IP spec, so don't need any adjustments to work together and it's very easy to swap hoses or stages.
OTOH, the Rover is actually a decent second stage when paired with a balanced first stage, so if you were at all interested in staying in the Mares family and getting at least some use out of your existing great, I can suggest 2 options.
Replace the 2S with a new 62X first stage for $420 (DIN or yoke).
Mares 62X 1st Stage Yoke Diving Regulator
Introducing the revolutionary Mares 62X 1st Stage Yoke Diving Regulator - a mini powerhouse that redefines underwater exploration!Small yet mighty, the 62X's diaphragm first stage sets new standards fo
www.scuba.com
Or go with this from Mares' tech line for $600.
DGX Custom - Mares XR Regulator
The Mares XR Regulator is a feature rich and high-performance model based on the Mares 28XR balanced diaphragm first stage and Mares HR engineered polymer pneumatically assisted second stage, customized with your choice of hose material and length.
www.divegearexpress.com
It's their flagship first stage paired with one of their adjustable second stages. You can reuse one of your Rovers as the octo. Keep the other Rover as a spare.
All of these share the same IP spec, so don't need any adjustments to work together and it's very easy to swap hoses or stages.