I have a 4-speed shifter for my 360 deg wheel panel, and it pretty much covers all (360deg wheel) games. It can be used for the lo/hi games, although yes AFAIK Pole Position and many other games still have the input in Mame as this dodgy 'toggle' method, so I use my ShifterMame360 build which fixes this. Most games are lo/hi with a handful of 4 speed...most of which I am not too keen on except of course Night Driver

For my yoke panel (270deg wheel games), I have a lo/hi turbo shifter. This is good for most games that I play, but there are a few 'tiptronic' (lo/hi return to centre) shifter games, and also some 4-speed. The latter two types are more common on newish and 3D games.
Note that many of the lo/hi 270deg wheel games suffer with the same shifter problem in standard Mame. I am almost ready to release a new version of ShifterMame which also deals with most of these, although I have not included many of the 3D games as my PC struggles to run them and it is painful to test
