Lh
425 rpm
17.9 mph @ the pins
50-75° rotation
8-11° tilt (high track)
227 average

What would you suggest for a lefty building a motiv arsenal with these stats?

I like TDC57's list except for the Jackal.  I would lean Covert Revolt for the high end.  I also think 4 balls might be a little limiting for a tournament arsenal.  You'll need stuff for heavy and stuff for light, but I feel that jump can be pretty big.

Every tournament I go to I feel like I wish I had one more.
Yesterday I was doing great until last game of semifinals and I ran into a crappy pair. Fried heads and sloppy backend on a 44ft shot. Didn't have anything clean enough but strong enough to fight the slop. Finished 16th out of 155. With only one bad game, but it was the most important one of the day. I wish I had a primal rage for yesterday. Threw my vengeance and shock the first 5 games, then got lost.  Just keep adding!

If I may ask, why the Covert Revolt over the Jackal?

Personally I like symmetric cores.  For me they are more predictable and as far as drilling, I have a better understanding of what does what.

With that said, based on a regional this past weekend, it seems some of the volumes on the named patterns has increased.  Because of this, a high end oiler may be a requirement.  Each person would have to evaluate this spot and figure out what works best for them.

If I may ask, why the Covert Revolt over the Jackal?

I like solids more than pearls, and I like symmetric cores more than asymmetrical cores. As spmcgivern said, they are more smooth and predictable. The revolt to me is more versatile than the Jackal, thus both need oil in the heads to get the best out of them. I love my Jackal, but I don't use it as much as I want to. As vince said, If I could only pick one between the Revolt and the Jackal, I'd pick the Revolt.