Do you all have special 150 class bags that you play with?
Yup!
I threw an all 150g bag for 6 years. There was a lot of experimentation, but things settled down towards the end of that period. The final lineup was:
Polecat (DX)
Aviar PandA (3 DX and 1 Star)
Rhyno (2 DX)
Roc (3 DX in various stages, 1 KC, sometimes a Champ)
Leopard (DX for understable, Star for more evenly stable, sometimes a Champ)
Eagle X (DX, Champ, and Star. Love my eagles)
QOLF
Firebird (Champ and DX)
I don't very often throw anything faster than that… but I carried a faster driver for certain courses
Boss (Blizzard and or R-Pro)
It's a very basic bag but covers almost everything you need. There were a few courses that made me break out very specific discs like Cobras, Sidewinders, etc for "that one shot on that one hole."
My regular weight bag still has some 150g putters in it (Polecat and Dart for now) because I find them indispensable in the woods. One tiny flick of the wrist can send them 200'. That's a huge benefit in heavily wooded, heavily elevated courses. Scrambles are much easier.