Shaft Recommendation?

[papswing]

Good Afternoon all from the UK, I'm hoping some of you guys could give me some ideas for a new Shaft for my R9 Supertri, I realise a club fitting is the way to go but I thought i'd ask here first.

I have a quick tempo with a very aggressive down swing, but hit the ball really quite low, I can generally get the ball out between 260 - 280 using a 10.5 degree head.

I keep going back to my Fujikua Speeder 757 - Stiff Flex, but shes getting on a bit now!

I've tried allsorts of Shafts, I currently have an Oban Kiyoshi 04 Stiff flex 75gms but dont really like the feel of it. I also have a Fubuki 63 X5CT in regular tipped 1" thats just awaiting a tip, I bought that just to try out but in standard form it was way too whippy.

Heres a few others i've tried!

Attas International 6S - beautiful shaft but felt a little boardy.

Project X 5.5 - too whippy

Diamana Ahina, great shaft but too low launching.

Voodoo Shaft - reg - too whippy.

Oban Devotion - stiff - boardy.

Fujikura fit-on - surprising good

Proforce - ok

I'm thinking of trying the Diamana Kaili, any thoughts?

Thanks in advance for any thoughts....Cheers!