Same problem here. I enjoy "higher end" stuff, and it actually is pretty hard to find something smart looking at a decent price to screw on Corona V8, my VGs, Prime etc (because atties range from 22mm to 25mm). The Detonator (apart from the tacky LED stuff) looks sleek, and would suit a few of my tanks well.
Getting a bit scared now, if it's not just that Squid mods are visually broken but also mechanically, .. Hm. Maybe i'll have a look around for another single 21700 mod (apart from the SL Class, which is ugly as sin) that suits my stuff. £80 might not be the world in regards to price, but it's expensive enough (especially for not having a Yihi/DNA/Dicodes chip) for me to expect it to last. Harumph.