We have teamed up with MK Machining to introduce the answer for focus control on the Pulsar Thermion. These durable levers allow off-hand thumb control of the focus ring. We sent them a couple of thermion units to custom design a 38mm and 50mm version and they nailed it. ...down to it conforming to individual gaps on the thermion focus ring. We will be handling distribution of these so any other dealers interested in offering these please reach out. Very durable material. MAP pricing is being hashed out...will update.