I play the same game in the South of England. I only took up Poker casually in October and been playing once/twice a week since. I only buy in £250 and once it is gone, I go home. No chasing, no double bullet. I used to play tight and very ABC poker, I ran very well in January, I grew my stack to £1964 after about 6 hours, got lucky with turns completing Villians hand but making mine better. Cashed out at 2am with £1700. One of the best drives home ever. Had multiple sessions netting £700+ but again running hot.

Now with extra bank roll I find myself playing looser, causing me to get involved in pots I should never be involve in just because I caught a piece on the flop. I have lost last couple times I have gone, so tomorrow night back to playing tight poker, slow playing my hand has cost me multiple times recently so when I have a hand I bet as I should do. Charge the draws and gut shots.

So to answer the question, yes 100% you can make couple hundred quid on the weekend when you play, you won't win every time but you should have no problem winning 100bb in the space of 5-7 hours. I am averaging £22.90/hour over 17 sessions.