Hi Uni/Ted,
I have the 24 thread to 6mm Riffe adaptor to use other brand spearhead or Riffe medium spearhead which is pencil point, but I never try any other spearhead than Ice Pick once I learnt how well it handle a fish. Maybe for my MT0 I will try to use a medium Riffe spearhead using the adaptor on my 9/16 shaft, now that you mention it. The floppers on the medium size is the same as large one I think.
In my city, the other ONLY brand of spearheads are the JBL. I have tested all of their offerings and don't realy fancy them. They are very sharp but very brittle. It is common to break the tip where they have the small 2mm hole for rubber insert to open the flopper. It is also a fact that Riffe 24 thread (bigger ) is much stronger than 6mm thread of the JBL type. Shaft breaking at the thread end was one of the problem on my JBL, maybe also because I do not use Loc-Tite those days and when the spearhead loosen a bit, it wobble and when a fish pull side way, it snapped. If u see a spearhead and shaft treaded end closely, you will notice that there is a shoulder right before the threads. This shoulder should be the one taking side loading when a big fish fight, not the threads.......if the fit is perfect.
I don't know if Riffe shaft is actualy different from JBL ones but out of 20 Riffe owners I know using 9/16 threaded shaft, no one have broken any thread yet. Most of them use Ice Pick and the way the load is taken by the slide ring of the Ice Pick, no way it can ever break a shaft, bending is common.
I have shot my 9/32" Hawaiian shaft at rocks and it just get dull and never break. I am not surprised if Riffe shaft is better than a JBL, the rubber is already obvious.
I have the 24 thread to 6mm Riffe adaptor to use other brand spearhead or Riffe medium spearhead which is pencil point, but I never try any other spearhead than Ice Pick once I learnt how well it handle a fish. Maybe for my MT0 I will try to use a medium Riffe spearhead using the adaptor on my 9/16 shaft, now that you mention it. The floppers on the medium size is the same as large one I think.
In my city, the other ONLY brand of spearheads are the JBL. I have tested all of their offerings and don't realy fancy them. They are very sharp but very brittle. It is common to break the tip where they have the small 2mm hole for rubber insert to open the flopper. It is also a fact that Riffe 24 thread (bigger ) is much stronger than 6mm thread of the JBL type. Shaft breaking at the thread end was one of the problem on my JBL, maybe also because I do not use Loc-Tite those days and when the spearhead loosen a bit, it wobble and when a fish pull side way, it snapped. If u see a spearhead and shaft treaded end closely, you will notice that there is a shoulder right before the threads. This shoulder should be the one taking side loading when a big fish fight, not the threads.......if the fit is perfect.
I don't know if Riffe shaft is actualy different from JBL ones but out of 20 Riffe owners I know using 9/16 threaded shaft, no one have broken any thread yet. Most of them use Ice Pick and the way the load is taken by the slide ring of the Ice Pick, no way it can ever break a shaft, bending is common.
I have shot my 9/32" Hawaiian shaft at rocks and it just get dull and never break. I am not surprised if Riffe shaft is better than a JBL, the rubber is already obvious.