So, weighed down and swiss cheese are his main go-to helix choices and everything else is up to the players preference? Sounds versatile to me. Choosing the helix options on the right for the first two levels would allow him to keep melee attackers at bay. Triple stickies lack the damage that stick n’ sap has when combined with 15% more damage helix. As for the regen, I wouldn’t say it is significant enough to choose over the insane reload or movement speed he gets at the same level.
Depending on the enemy team comp, Whiskey has enough variety to choose from in order to adapt. If that isn’t versatile, I don’t know what is.