Struggling with my new laptop this morning but wanted to comment quickly.
SC, unfortunately your 'Helena's Blush' is exhibiting some of the same problems we had with it. Some of those branches are reverting back to its parentage, E. x martinii, and will never show the variegation. It's not a 100% fix but you should prune out those branches to encourage new growth with the true variegation of 'Helena's Blush'.
I had a meltdown last week after my doctor's appointment. Realized I'm not going to be able to walk for at least another four weeks and it's impossible to get "into" the gardens.
However, I was able to visit the gardens last Friday. Rick helped me into the van and drove me around the driveway. Not perfect but I was able to see some of the most spectacular blooms I've ever seen on E. 'Shorty'. I've asked Rick if he can try to get a photo for me so I can post it soon - they're unbelievable!