My van came with almost new Marshall KR11 tyres. They were predicatably terrible - not a lot of grip in the dry and dangerous in the wet (even though they are completely legal). Similar to my experience of a lot of 145 x 10s from thirty years ago when I drove Minis a lot. Back then I settled on Firestone tyres as I found them to be good value (£20 each I think) with better wet grip than a lot of others but unfortunately these seem to be long gone.
I was going to stick with these Marshalls as they had plenty of life in them with a view to eventually getting something better. Change was brought forward as I had fitted Cooper S discs which increased the track width but worse, I had a nasty tyre failure where the tyre sort of expanded and sent the wheel way out of balance.
I don't know if the tyre was damaged by the vehicle not moving for months while I did an engine rebuild but I now didn't trust the other three. A quick call to Blockely and the next day (beats Minispares delivery!) I had five new tyres and inner tubes and a trip to Minispares provided five Cooper S type wheels.
Now if you're looking for ultimate dry grip you won't find it with these tyres but then you likely need more than 145s if that's the case anyway. They have sufficient grip but it's the way they let go which is impressive. There is no sudden loss of grip but instead it is very progressive which provides loads of feedback. Very easy to feel and control understeer and oversteer. Wet grip is vastly improved and confidence has been restored when driving in the rain. Tyres have shown no signs of aquaplanning but undoubtedly will with enough speed and water. Time will tell what the wear rate is like but I don't do massive mileage so it doesn't matter too much to me.
Now there's Dunlop Aquajets too but at quite a premium over the Blockleys - £120 for the Aquajets and £75 for the Blockelys. The Blockleys represent good value for money and are an excellent choice if you're looking for tyres in the 145 x 10 size which aren't dangerous. Highly recommended.