As a former brunswick throwing lefty I can help you here.
I use the same arsenal on house and sport shots, but I have a few more than 3. I'll give you the three for your clasifications.
HVY: 715T
MED: 505T
Light: 505A
Because these are Asymmetric you can create the shot shape you are looking for with you Mass Bias location, so all can be flippy or have an arc motion to them. I use both as they work for different conditions.
--------------------
"...do or do not, there is no try."
St. Louis USBC Sport Bowling
Best Bowling Pro Shops Inc., St. Louis MO.