Ok
Here is my fast unscientific test of bow speeds.
The bows I shot were
1. Reflex deflexed Borders Griffon 64” 55@28”
2. Heavy Reflex Robertson Longbow Over Drive 62” 60@28”
I shot the bows using a trigger release to take my poor shooting out of the equation as much as possible. I pull most of the longbows to 27-27.5 inches and recurves to about 28”, with a normal draw. I also stretched 2 shots for each bow as far as I could reasonably draw probably 28+ inches. I really needed someone to help and keep the draw for each shot honest my tendency was to want to see speed. But I tried to at least be consistent in pushing the bows to go fast. Thus I don’t think this is the best any of these bows could do, and maybe this is not an accurate draw weigh estimate but it is what I did, so take it for that. But I did find some consistency with the speeds from each bow so it is what it is. Here are my results.
5. Borders Griffon 64” 55@28” with 554grain arrow
average 175fps fastest 181fps
6. Robertson Longbow Over Drive 62” 60@28” with 606grain arrow
average 178fps fastest 185fps
I think the Borders Griffon is a little smoother on release, but that by no means implies the Robertson OD is rough, I would call it maybe a little forceful. And you can see the Robertson nudges the Griffon in speed. I find that both bows shoot to similar points and I can switch very quickly. I am going to have to keep the Robertson, I really like it’s looks and the way it sends a 600grain arrow with authority.
the Robertson is the top of the photo and the Borders is second. The third bow is a Horn's Bush bow and the last is a Raptor Self bow. All have the backs facing down and the belly to the top of the photo.