Some examples of how ridiculous the height restrictions are here, Volpaiute is about as tame as a carousel. 1.2mtr height restriction and anyone under 1.4 has to be accompanied by an adult. Magic Fish in Sesame Street the same. Kontiki, which is smaller and less intense than Blade, the same again. So I have a stunningly beautiful daughter that has lapped Wickerman, Taron, FLY, Icon and Wodan (some of these completely on her own) numerous times, yet a year later she needs daddy to hold her hand on a small pirate ship. Angkor is 1.3! Could you imagine if you went to Towers and an 8 year old wasn't trusted to shoot a water pistol? It's absolute madness!
In terms of the rides you mentioned
@Matt N I was going to do Red Force tonight. Since you only get 1 FL visit per trip, I've just dipped in and out of the main park at this time of day as it's proven to be the best time for short queues.
Baco is as everyone has already described. Rides like there's gravel on the track and wheels. But I actually enjoyed it. A pre launch show and decent launch followed by a rather fun airtime hill at the end of said launch. Then it just shakes and vibrates you viciously worse than any steel coaster I've been on until you get to the inline twist. This inversion would be awesome on a B&M wing. But this ain't one, so it just deals you some more pain before the last extremely rough turnaround over the lake. For some bizzare reason, they film your discomfort on ride. So the shop at the end consists of multiple TV screens showing everyone's body violently vibrating and smashing their heads into the restraints.
Shambhala, well other than the mid course (which you could say is necessary if they bothered to operate it with 3 trains and didn't take forever to despatch each one, but sadly all but 1 time I've stacked on the brake run) I couldn't fault it. It's mostly what I enjoy in a coaster. A beautiful view and setting, smooth, airtime that delivers on every part of the train pushing you up into the restraint for sustained airtime, no boring parts. I like Silver Star (never ridden Mako) and it leaves it for dust. Not that Silver Star is bad, Shambhala is just better in every way. Feels very fluid and complete without dead spots whereas SS feels more "engineered". I could ride Sham all day long and be perfectly happy.
As you know, Khan was born from a coaster I first rode in 1993 and last rode in 1994. I loved Kumba so much I spent most of a day riding it back in 94 in Busch Gardens Tampa. So DK was hotly anticipated, being the improved layout of something I adored 30 years ago. But Kahn wasn't just rough for a B&M coaster of its age or anything like that. It's just plain rough full stop. Really rough. Surprisingly so. It's awful. I wanted to enjoy it and have ridden it 8 times this week in various rows but every single one is the same. The Zero G, bottom of first drop and bottom of both corkscrews are particular bad points. You'd expect a coaster of it's age to feel a little ear bashy, but this is really bad. On Baco you can avoid the head smashing from the pointless OTSR's because there's space to tense and lean. On DK, with big thick B&M restraints there's no chance! You can't just stick your head out at particular points to avoid being smashed up here. It happens at seemingly random points depending on where you are sat. At least Baco is over sooner. The sad thing is, there's a good coaster in there somewhere. It has a fantastic layout that's intense and great to watch off ride. Like I said, I have fond memories of Kumba from 30 years ago. But everytime I felt some intense G force's and started to enjoy Kahn, it usually meant that a smashing was sure to follow. After 8 attempts, I still haven't "learnt" to ride this coaster. Shame because I don't mind rough if it's an enjoyable ride (Saw), but discomfort takes away the enjoyment from Kahn. It's jolt after jolt more than constant violent vibrations like Baco.
Stampeda I had no problem with. Not mind blowing, not smooth at all. But the only thing that thrilled my daughter (her current top 3 coasters are FLY, Wodan and Taron). I quite liked it. Yet to do red side (doing in this afternoon).