Well done 
The weather is putting my Snowdonia plans on hold and it doesn’t help that I’m very busy with fun family stuff.
Off to see my mum for the weekend with a stop off in the Surrey hills where I have organised a tour guide to take me over some of the best hills - he’s a lot faster than me so it may be quite a challenging ride!
So, I made it to the Surrey hills today, really very nice and I had a guide.
Ticked off 3 today (and on my friend Jeremy’s route so nothing to do with me!)
No118 - Coldharbour Lane (lovely), No18 White Down (stiff) and No14 Box Hill (also lovely)
I think that takes me to 54, must remember to get the app!
Coldharbour is a nice climb although I always ride it the ‘wrong’ way on many of the routes I ride.
The hairpin on Whitedown’s a shitter eh?! 
ETA - just seen your ride and you took in Denbies too, lovely climb with a view
The hairpin on whitedown is the easy part, I made it round the corner, single-legged when my crank fell off!
What? It’s 18% isn’t it? Ffs
If it got to 18% it was certainly not for long. Strava gradients are never accurate enough to help either.
FWIW it felt like steady 15% with the odd slightly harder and easier moments. The main challenge for me was that it went on for quite a lot longer than I thought it would - the false summit about half way up really caught me out.
I really liked the Denbies climb too, lovely setting
Whitedown is pretty much dead straight ~15%, other than the bend at the bottom which is much shallower, you’re probably describing Coombe I think, the next road to the west, which is a hard ~18% left hander after 4-5 minutes of 6-8% and followed by another bit of ~9% so there’s no immediate recovery.
(I think the official climb version of whitedown may start at the A25, but that’s not really a hill)
Did you have to stop to open the gate?
No, but I do recall talking about the fact that we might have to as I recounted my “epic 20% remount amidst a herd of cows story” from a few weeks ago
I never climbed it much, even though, it’s exactly the sort of climb I liked, and the alternative for the routes going near there not so nice - but having to stop and open the gate always ruined it.