I've practiced many of these shots simply because they've come up in actual games here and there. I wasn't even aware they were part of the BU exam III testing! Lol.
But there are two I've never practiced: A9 (banana shot) and A18 (hop on cushion nose). They seem more like trick shots, something that even professional trick shot artists would have a low percentage chance of making at least 1 out of 3 times. Well, A18 especially. A9 could be easy enough with practice. But for A18, hoping perfectly on to that cushion nose is quite a challenge. A lot of time could be spent practicing that shot, and in the end it's still going to be a very low percentage shot to attempt in any game situation. Just for the fun of it though, trying it a few times would be interesting. I just wouldn't waste a lot of time on it.
I have a friend that can routinely make a few "fancy" trick shots, and though he's a decent player, he's not a real good player. I often wonder how good he could be if he devoted as much time to regular shooting skills as he does to trick shots. All I'm getting at is this.....for the fun of trying the exams, practicing a few of these shots a few times before recording would be time well spent. But spending too much time practicing super tough, rare, low percentage shots is time that could be spent practicing something more useful that would actually improve your overall skill level.
In other words, by practice the shots you see 99% of the time, you'll find yourself playing well 99% of the time. So you could come out of this quarantine period as a stronger player, or you could come out as a player that's learned how to sometimes make a really cool shot every once in a while. Both would be nice, of course, if you have the time.:wink: