Some brief thoughts:
I'm 76 kg and sail a Radial but used to be 72. You are probably OK on Radial.
!5 knots I'm comfortable, to 20 can sail but am slow. Keep learning.
Laser is not easy to sail.
Unlike 125 and Cherub there are no chines so, despite what all say, keep some centreboard down...
Is the vang key the older "straight" model or the newer "kinked" type. The straight type has always looked inefficient to me. On my boat I have both there but use the kinked and ans save the straight for emergencies.
Steve and Alex
Another way to check seams is to cover breather hole and with boat upside down cover seams with shaving soap mixed with water. Pump in air (not much) and check for bubbles.
As it happens, I've never made this work.
On the other hand we did finally discover the small but persistent leak in my...
Further to Alan's comment and with respect to a finish line, our club finish is effectively 'closed' in that SI state that it cannot be crossed save on first beat or finishing. The finish is between the Club house and a mark off shore and the time keeper tells me she would prefer that it was...
I sailed a masters event a few years back with one sailor a severe Diabetic. His Laser came with, and my memory lapses, either a unit that reported to shore that he had stopped moving and required rescue, or a unit that reported blood sugar to shore.
Seemed to me to be a great idea to allow all...
If you get really, really, really desperate I have one in my box of bits which is of little use to me
But I'd think about updating and replacing with a screw type fitting
Steve & Alex
Indented Head - Victoria - Australia