I have not used my Ken Dibben 9'1" x22.5 x3" for about 8 years. Been busy with other water sports. During lockdown I pulled it out and repaired it so it was all good to go. Had my first session the other day and loved it. Smiling all day long. I've had the board for 21 years since new. Always loved it but noted that it is rather heavy being 20lbs or 9 kgs. I read that is a couple of kgs heavier than the average board. Is that a big disadvantage? I only weigh 63kgs.
I am really happy with its performance but I have not tried any other longboards. Am I missing out?

Damn I wish I did physics so I could throw Some big brain equations at you but tbh I missed most of science cause I went surfing

Weight equal momentum. Momentum equals speed and glide.

Heavy will be harder to stop, more weight will be harder to turn but straight line speed will be generated easier than a lighter board.

Some good points raised. Hadn't thought about not being bounced off, particularly in choppy conditions. Straight line speed is a good point too.
Think I will stop being too envious of those light looking newer boards..... except when lugging it to the other end of the beach. Thanks

A while ago I asked the opposite question here. "Can a board be too Light?"
I was worried about being blown off the top in strongish off shore conditions.
Any way I went ahead and made it as light as I could. 9' long and about 90litres without fins, came in at 5Kg.

Was riding a mate's 9' standard construction board, probably around the 8/9kg mark. I found the take off a lot different to my light 8' board. the board would drop down the wave much earlier than I was used to, as I stood up the board would drop away underneath me.
My new 5kg board doesn't do this, I have to push it down the wave as I stand up. And yes I think a strong off shore would make it harder to ride than the heavier board.
But in a glass off situation, the lighter board is much easier to turn, and accelerates much faster, so a no paddle take off is easier.

I guess I'm a lightness fanatic, every since the late 60s I've been trying to get boards as light as possible. I just like being able to generate as many Gs as possible.
I suppose my feeling is that the rider is more in control, when board to rider weight is as low as possible.

I agree that more momentum will lead to a better glide, but less weight gives better acceleration, and more manoeuvrability, can help keep you in the fastest part of the wave. More Gs out of the bottom turn, can help sink the tail and give more buoyancy acceleration towards the lip.
But if you just want to cruise and nose ride, there's probably no disadvantage in a few kgs more weight. Apart from getting back to the car after you're exhausted.

I'm not sure where I'm going with my board, I'd like to be able to ride both ways depending on my mood. But this old body is much less agile than it used to be, way out of condition, and not used to walking the board.
I didn't go very well yesterday, but did manage a cut back, bottom turn head dip sequence before the soup knocked me off. Hopefully more time on the water will help bring some of the old skills back.

You got back on it after 8 years and loved it . Just ride it . Unless you've got plans to get something else if you love it then stick with it . A bit of weight is not a bad thing in a longboard