Some say it is not good to spray a Darton sleaved block.. (100-150 shot) Any one doing it with out problems?

Thanks in advance.

 

I was told by Ed at LPE when I ordered my Darton sleeved block, it should not be a problem. As far as I'm concerned it's no different then running boost when it comes to pressure on the cylinder walls. I will found out soon as my 427 will be sprayed very soon.