[Closed] Hope headset bottom bearing

I have an old Hope headset on my TallBoy 2, external cups - EC49/40.

A while ago I replaced the bearings as the top bearing had disintegrated and was rusting, even though everything felt fine.

A few days ago when I went to grab my bike, the bars wouldn't turn. I pulled the fork out and the lower bearing was completely solid. I had used this bearing :

SIMPLYBEARINGS.CO.UK "https://simplybearings.co.uk/shop/p20000598/TH-873-36X45-deg-Headset-Bearing-30.15x41x6.5mm/product_info.html"

Budget TH-873 Angular Contact Headset Bearing with External and Internal Chamfer Simply Bearings Ltd

Budget TH-873 Angular Contact Headset Bearing with External and Internal Chamfers 36x45 deg 30.15x41x6.5mm Simply Bearings Ltd

Hope does say it is a 7mm width bearing, but I have noticed that there is a gap between the race and the bottom of the cups so went with a lower profile bearing to try close that gap a bit. But the grease in there was pretty clean, so I'm guessing I needed a 7mm bearing?
Is that gap normal or should I look to get a new lower race or cup?
7mm or 6.5mm bearing?