I love B&M inverted coasters. Truly, riding beneath the track is my favorite type of roller coaster.
I have experienced most of B&Ms mentioned in your article and have to say my favorite is Montu. Being avid skiers, my kids and I enjoyed the theming of Alpengeist but felt that bigger did not always mean better. I hope to make it up to Kings Island soon to try out both Banshee and Diamondback.
If a park has a B&M inverted coaster, that's usually my first and most frequent coaster ride of the day. They're a great way to start and end the day at a theme park. As far as the Vekoma inverts go, what a disappointment. I'll ride them, but Vekoma inverts look paltry when compared to B&M inverts.
The double LIM launch element to Volcano: The Ride is awesome, and then they do so little with the subsequent elements. It's a shame they waste all of that kinetic energy on weak elements around the volcano when the ride would be more visually appealing if the track were routed away from the mountain, and a few more loops and rolls were added in before the track returns to the volcano.
The second half of Volcano makes sense thematically since the train slowly makes it's way around the volcano like lava oozing down the side of a summit. It's not the most interesting or exciting, particularly after the amazing launch, but it works in context. The fact that the designers built the coaster around an existing structure (former Haunter River shoot the chutes attraction), meant they were probably limited with what they could do with the layout. They also had to work around another roller coaster, Avalanche, directly adjacent. Volcano has a very interesting history...Intamin was a little ahead of their time (similar to what happened with Top Thrill Dragster) and the first year of Volcano's operation occurred with trains with half the number of seats as originally designed. The launch (there was initially just one) was not powerful enough to reliably push a fully loaded train over the top, so to reduce weight, the even numbered rows were removed, meaning the capacity was 8 people per train. When they finally added the second booster launch, right before the track twists upwards, the master controls had difficulty timing the second launch to actually accelerate the trains, and frequently it would slow the train because of the poor timing. It took nearly 3 years to get it right, but it's been running pretty consistently since. Lesson---Don't expect to run an Intamin coaster at full capacity in the first year plus of operation.
I also didn't realize that they added the second set of LIMs on the approach to the volcano at a later date. It seems odd that Intamin didn't over-engineer the original design, but I suspect that limited funding coupled with the fact that the ride goes into a hard turn right after the first set of LIMs set a ceiling on what they could originally do.
You and Bobbi are spot on about Talon. A great coaster in a nice park that doesn't seem to get the appreciation that they deserve. There seems to be an unwritten rule in eastern Pennsylvania that families go to Hersheypark and teenagers go to Dorney. I don't get it, because Dorney has a nice atmosphere with a good mix of rides.
Rollercoaster enthusiasts in the Washington D.C. area are so lucky. Six Flags America nearby (okay, maybe not so lucky), and Kings Dominion, Busch Gardens Williamsburg, Hersheypark, Dorney Park, Knoebels, and Kennywood all within a few hours drive.