I actually do have a grafted Eyepaint from Pickering and it's a large bush, but I think it was even bred to be larger than the average hand-painted rose.
The other rose was introduced as Rock 'n' Roll and later renamed to honor Stretch Johnson, in the same way that Comtesse de Provence and Perception were renamed Liv Tyler and Leann Rimes.
It's bad enough when the names are as similar as Rock 'n' Roll and Rock & Roll, but sometimes there's no difference whatsoever. In my garden, just among the roses beginning with an "A," I have two Abracadabras, two Alohas, and two Ambassadors. In each of these cases, the second rose was the product of a different company, but Kordes and especially Meilland actually reuse their own names for roses that are vastly dissimilar. I have two Cocoricos, for example. Both are Meilland roses, but one is a single red and the other is a pink and white double. I have two Traviatas. Both are Meilland roses, but one is red and white and the other is pure red.