Some specs on both balls.
The pin, I believe, is 1-3 inches. I don't have the box with me so I can't confirm it, but I definitely know it is not more than 4 and not less than 1.
My span is about 4 1/2" and it's drilled most similar to Brunswick Drilling #1L.
Both balls have slugs and grips and only a single drill.
For the Switch Blade, I'm asking for $50 shipped in the domestic US.
For the UI, I'm asking for $75 shipped in the domestic US.
Prices are negotiable.
If you're local to the Northern NJ/NYC area, I'll knock the price down more since no shipping will be involved.
If you would prefer a trade, I'm looking mostly for reactive pearl or particle pearls with a similar span for medium-medium dry lanes, ie, I'll trade the switch blade for a Hot Rod Pro Stock Pearl, but I'd expect a little more for the UI.
Picture can be taken if you would want one.