Testimonial From Raymon Lidguard
Gday! My name is Raymond Lidgard
I've been free diving and Spearfishing for the last 15 years and have been working in the seafood industry as a commercial Kina and Paua diver for the last 6 years, well known as the smart ass on the TV series 'Spiky Gold Hunters' based out of Bluff On the FV San Nicholas.
I got my first set of Ruku blades 4 years ago and have stuck with them since. We work in the water for 8 hours a day and 1000 hours per year in some of the harshest conditions in New Zealand. The only time i have replaced my Rukus is when the dinghy has flipped and i've lost them! I'm yet to break one which is unreal considering the abuse we give them.
I choose to use medium stiffness blades colored pink for safety and visibility, the medium stiffness i find is fast on the surface and underwater for the amount of energy i'm using and used with the right foot pockets to suit you, they are nice on the joints hips and feet.
Back to the abuse, we treat our dive gear like no one should ever treat property of their own EVER! They get thrown around the boat, were jumping in and out of dinghy's all day in conditions pushing 20-30 knots at times, and if your too slack and leave them lying around the boat some idiot will stand on them! still haven't snapped one yet.
In conclusion, It’s a New Zealand product made in New Zealand and made for New Zealander's, if you are still not sure they have a 3 year warranty too.
Happy hunting and safe diving . Raymond
Testimonial from Dave Mullins
Dave Mullins is New Zealand’s deepest diver, he holds 17 national records and six freediving world records. To add to his accolades he holds a world record for a striped marlin which weighed 156.6kg’s
Up until a couple of years ago I swam with flat plastic fins. These performed well enough underwater but the lack of angle was starting to injure my ankles, particularly in competitions that involved lots of surface swimming.
In freediving I use very high angle monofins to reduce knee angle, both when kicking and when in the glide phase of the dive. After looking at the local options I bought a pair of Ruku's because the blades were angled well and they are made in New Zealand. I’ve always felt that the angle, length and flexural characteristics of a fin are far more important than the material used. Carbon fibre is lighter than glass but ultimately I haven’t been able to find much difference between the materials in real performance terms.
My first Rukus were Medium stiffness and while they felt good on the surface, they seemed a bit too long and had a tendency to fold in the middle under power. This wasn’t an issue on shallow dives but showed up when I went deeper, especially in Wellington conditions with a thick suit and lots of weight. It felt like they reached a point where the fin tips couldn’t keep up and ended up trailing behind the rest of the blade rather than actively pushing water. Changing to a pair of slightly shorter and much stiffer Commercial blades fixed the power issue but the trade-off was a hard slog when swimming long distances. The blades were really built to sprint and carry heavy loads.
When I spoke to Ruku I was told a redesign was on the way and after I gave some feedback we decided to experiment with a couple of variations. The aim was to keep the fins fairly soft but able to perform on surface sprints and deep dives without folding. It was an interesting exercise as a re-design of the internal structure yielded some fins that looked nearly identical to the previous model but behaved quite differently. The version with slightly reduced length and a steeper taper built into the laminate clearly outperformed both the originals and the much shorter comparison blades. They seemed to be effective across a wider range of speed and power, settling into a nice ‘jogging’ pace on the surface but still keeping up with harder kicking on sprints and deep ascents.
To be fair I had given Ruku a pretty tough brief after using my original Rukus since I weigh 100kg, operate mostly in cold water, favour soft fins and enjoy deep diving. This awkward combination of preferences and constraints probably meant that I ran up against equipment limits many divers just wouldn’t notice. I imagine it would be quite easy to slap together some tapered fibreglass sheets and churn out moderately functional fin blades that satisfy enough of the spearo population to stay commercially viable. It’s a lot more difficult to produce something that holds up in a more demanding freediving context and Ruku’s approach to continual improvement has been very rewarding.
The new blades should satisfy anybody looking for a good balance between surface swimming and depth performance, even at the serious end of recreational diving.