I think that area is over run with perigrans and the birds are being forced away East we tossed from 10mile further up the road and got one reported in Aberdeen the rest took 2hrs rather than 1/2 an hr.
We were the same last Sunday 35 min toss from Romano bridge at Peebles took 2 hour for 1 St half dozen then all day for the rest which looked like they had flown from across the water totally burnt out.
Can't be 7 month lol then it would take 7 month to get back to Africa that's 14 lol plus there here for 3 that's 17 plus the time they spend over there lol.
Most breed names win at all distances but some more at long than short and some more at short than long ect get your birds from a good pigeon man or a reputable stud they will tell you how to fly them most of us are learning all the time good luck.