Damn mate, a 100? Thats big old weapon! Are you sure you want to go that big? Thats a 5+ meter range gun...! Do you need that with our viz?
Sporasub have given Ivan a 90 to test IN THE MED... If a 100 was best for general med conditions ( i.e. calm, good viz), surely they wouldnt have given him a 90...? You see where I'm going with this... For popping ~4 lbs Bass in low viz / UK conditions, having a gun that will launch a 6.75mm spear 5+ meters seems a bit overkill...?
Have you seen the newest interview about the One Air on Ivan's blog? The Sporasub guy is saying that a
One Air is way more powerful off the shelf than a dry barrel converted Airballete. i.e. You dont need a big gun to get long range / power.
If power is no issue, I recon the shorter the better! You cant hit a fish if you cant get the gun on it in time