I want to share my experience with four fins which I tried in one pool session. I am deciding on which ones to purchase hence I went to the pool to try the fins that the divers were using. The 4 that I tried were: SP Jet Fins, OMS Slipstream, Hog Tech 2 and UTD neutral buoyancy precision fins. All fins were fitted with spring straps.
The SP jet fins were the heaviest (about 1.4 kg each fin) and as expected my feet was on the floor of the pool when I was hovering about 8-10 inches from the floor. I cannot keep my feet up for long and my trim was affected. It is very negative buoyant. The foot pocket of the jet fins were small so I have to take the XL fins. These are much larger than the L size fins. I can feel the weight when frog kicking, you need to have strong legs.
The OMS slipstream was lighter (about 1 kg each fin) and was not as negative buoyant compared to the SP jet fins. I was able to keep my trim and the L size fits well. It was easy to frog kick. I like these fins.
The Hog tech 2 fits well. It weighs about the same as the slipstream. It is softer and when frog kicking I feel there was less power compared to the jet fins and slipstream.
The UTD neutral buoyant fins (there are also the negative buoyant ones) fits well too. They are comfortable and they frog kick slightly better than the Hog but still not as strong as the slipstream or jet fins. I like the UTD fins.
I don't have problems with my trim with the slipstream, Hog and UTD fins. They are about the same buoyancy i.e. slightly negative in swimming pool water. This is also due to the spring straps.
Price wise - the jet fins, UTD and slipstream are about the $200 and the hog tech 2 is $170 (for the neutral buoyant fins) in sg. US pricing is cheaper but if you add in shipping it is probably better to get in sg. However I am able to get it shipped within the US and have someone to bring back to sg.
Eagerly waiting for my new fins to arrive.