I have a bit of difficulty standing on a short foil board when surf supping (it's an age thing ,66)
All good with a wing
Saw a a couple of older guys riding 8-9' sups with foils,they weren't throwing it around,just cruzing.
Unlike me they had no trouble with swell or chop.
I have a 9'2" old carbon evoke,is it worth converting.
I know ,practice and learn to balance,but I'm lazy.

Probably worth while if you are not having to spend $400 getting tracks installed and the board is not worth much anyway. I started foiling on an 8 ft 5 Takuma board and it was fine. Before I got a smaller board I considered using a 9 ft something fanatic all wave. I was going to cut the tail off about 2 ft up and bolt the foil on where it wouldn't be affected by tail rocket. At around 7 ft long it would have plenty of volume and width to be super stable and easy to paddle. If you can get something like the 140 litre naish hover ready to go it should be easy to paddle though.

I learned to foil on a 8'9"
www.seabreeze.com.au/forums/Stand-Up-Paddle/Foiling/SUP-foiling--my-first-steps-

It is quite doable, if the board is light.
The pro is the paddling speed:
- you can lift off with only the board speed, so with training it is easier to take off on non-breaking waves, even if you do not have the cardio of a young man anymore
- it is a breeze to paddle back to the spot
- you can enjoy onshore days without suffering when paddling and keeping your balance

The cons is that:
- pumping will be quite limited to mere meters at the end of the ride. Basically, forget pumping.
- board reaction will be slow, you will need to anticipate more in flight, ride smoother (not necessarily a bad thing)
- it will be hard to recover from touchdowns: you will not fall, but it will be hard to take-off again.

I'd say go for it.

Be wary to put the foil forward enough. Your feet position should be the same for paddling and foiling, so the front of the foil wing should be under your feet when in parallel paddling stance. Plus the foil should be parallel to the water surface, nor pointing down by even a degree!

PS: keep one or 2 fins in the rear boxes. It will help immensely with your paddling efficiency and touchdowns recoveries.

Thank you for your input,I'll do it.

thinking about how it will go winging ?..might be fun

thanks again

If your old carbon evoke is still in good condition. Keep it for SUP surfing.
If you are new to using epoxy for board repairs etc. I wouldn't bother doing the conversion. Rather get a pro to do it. But it may cost you over $200 Australian. And maybe the same if you do the conversion plus the headaches.
So maybe that money can go to buying a specific foilboard.
If it was me I wouldn't go anymore than an 8ft long board if I weighed over 85 kgs. Up to 7ft for lighter.
A good stable board can be around 32 to 33 inches wide for a person 80kgs & over.
In my view. If you get a short board as possible close to your evoke width & volume you should be right.
And don't forget the foil will add extra stability.
One of my boards is a heavy 7ft long by 31 inches wide at 115 litres for my weight of 80kgs. Heaps of stability with foil added. And its my go to board in most conditions.

Good stuff Fitzsup. Practise makes perfect.