What are some things to keep in mind regarding gripper technique with smooth handle grippers such as Ivanko Super Gripper, Zenith, and Vulcan(one smooth handle) grippers? Are there any positional changes or things to focus on to keep the gripper stable/from slipping?
For me the main difficulty is it's hard to keep the palm handle forward in my palm, it wants to slide back towards my wrist putting me in a weaker position.
Also, are there benefits to training primarily with smooth handle grippers? My goal is general hand strength and for weightlifting grip, not closing TSG's, and I just have an Ivanko super gripper right now. I've considered friction tape but are there some benefits I get from the smooth handles that I'd lose changing the handles to a non-smooth surface? Fellow ISG users, have you added friction tape to your gripper or just use the smooth handle as is (or with some chalk)? Another idea I had is keeping the handles smooth but using gloves just for max attempts?