Nice mold!!!
You're going to love the 68 clone, mine casts beautiful round consistent bullets.
Something to think about:
I also use a hotplate to preheat my molds. The hotplate I use has setting that go from 1 to 6. I use the hotplate to preheat my mihec molds with it set of 5. The mold is hot enough that the lead takes awhile to solidify (around 15 to 20 seconds) & then slowly let the mold cool down as I cast until I get/find a speed that the mold will cast good bullets & that I can also live with. Hot pins are happy pins, if the bullets are sticking to the pins than they are too cold. I also use a synthetic 2 stroke motor oil for mold lube & I lube the points of the hp pins, flats on the solid point pins, sprue plate, pins & handles with it also.
When I 1st started casting with the Mihec molds I was afraid of warping the mold so I kept the preheating low & the lead high, frosting everything I cast, had low cast #'s & a high rejection rate. Slowly I brought the preheat up & the lead down (5 or 6 casting sessions) until I got to the point that I could just preheat & run good bullets. The 200gr hp's pictured above took 1 1/2 hours to cast, were from 3 pots of lead from a lee IV 10# pot & produced 16# of good bullets or 500+ bullets.
I now preheat, lead temp (690), lube all my Mihec molds the same & they all produce good bullets with no sticking to the pins/inserts. When the temp drops in the pins bad things happen. The only mold that still gives me fits is the Mihec ness safety slug for the 30cal, this mold is all hp pin. The hp pin cools off rather quickly & the bullet will stick to them. So after the 3rd casting session with that mold I found that I have to:
Preheat the mold till the lead takes 15 to 20 seconds to solidify on the sprue plate.
Cast 20 to 25 sets of bullets or until the bullets start sticking to the hp pins.
Once the bullets even give the slightest hint of sticking to the pins (even lubed pins), stop casting & preheat the mold again.
The ness bullets shot into wet newspaper & milk jugs of water @ 50yds.
A little eye candy, cast hbwc's (I have the 38 & 44 molds), these are 220gr hbwc cast bullets for the 44spl/mag.