Hello Wonky,
Did you have to tell me it had a walnut thumbnhole stock ? mine has an ordinary standard stock. I found if you hold the cocking lever halfway down when you start to close it it's easier, then slide your hand down to the rubber grip as you get to the last few inches where the extra pressure is need to close it. Keep your shirt out of the way if it's loose fitting or the locking pip will leave nice tears in it
By the was if you happen to have the user manual for the Mohawk I'd be grateful if you'd please scan it and e.mail me it, I can't get hold of the damn thing anywhere.
Regards