Any kind of good training is cool. But, in USPSA competition, a good bit of your time is spent not shooting . A competition oriented class would help you get more efficient in the non-shooting tasks.
Good luck!
Chuck
I just had an eye exam last week. It has been 7.25 years since my cataract surgery and I am still doing better than 20/20 in both eyes at distance. I'm happy
The pioneers of no adaptor can be found in this 2003 thread:
My experience was that the Dillon tubes just fight tightly into the underside of the tray. The bevel made a "funnel" to guide the primers into the tube. The best $29 that I ever spent. The kid that bought my 650 now has it.
I used a VP for more than 15 years. I (and others) simply eliminated the adapter and just held the bare end of the tube against the feed hole in the bottom of the tray. I think I did a light bevel of the tube ID.