I'm not happy with initial assemby of one half of the HS at a time so I decided to do both sides at the same time. This worked out very well and everything turned out very straight and level with little difficulty in alignment and I found it far less confusing and easy to stay oriented. My biggest problem is that I ran out of 3/32" clecos. I had 200 and used them all... could use a bunch more. I'll order them tonight. For now, I'll wait on the match drilling until I get more clecos.