"T3PRanch"+1 on that. The only disappointment I have with British Guns is limited power in most product lines.
Thurmond
That's a sentiment I share for 25 cal British (and Turkish) guns usually. The 177 and 22 fac versions usually have the correct power for the caliber. More recently though, I have noticed that Daystate seems to be trying to listen to their customers for some of their guns and offering highe power versions.
They have some high power versions that put out 50fpe (or more). Oddly, they have 50fpe versions of some of their 22's which is too much power imo. But, they also offer 30-35fpe versions of those 22's so no harm done. The Regal XL is the only one not available with enough power in 25 cal now.
For me, the bigger issue with the British brands is that the reservoir and valve systems clearly aren't made for or optimized for the fac power versions.
I can live without a reg on a 12fpe gun that gets 100-200 consistent shots once I identify the "sweet spot". When you take the same gun at 35fpe, the shot count, noise and efficiency can look quite disappointing next to the FX, Kalibrgun and Mutant guns.
Personally, I think they should all stop being stubborn and at least offer a reg as an option on the fac versions. They all seem to think their valve systems are so good that they don't need it and they are all wrong.
I was quite impressed with my Huntsman Regal 22 when I had it in lots of ways but I never considered the slingshot hammer system to be an alternative to a regulator. It's a good hammer system though and I'd love to see what they could do if it was combined with a reg.
On the Bantum, I think that if you aren't going to have a reg, it's better to have the larger bottle than the tube version. Without the reg, the larger reservoir is needed to give you a longer sweet spot in the string. Still, if I bought one, I would probably want to add a reg.
If the numbers stated are correct correct for the fac version in the British review, it's not the most air efficient gun so it might benefit from a reg and some Ernest magic (aka airgun pixie dust).