Hi Dennis, Yep the exhaust stub option saves a lot of time. I found out only after I had installed the 4x merlins. A very useful option for those not showing engines.
The blisters are not too much of an issue with a little thought. They are done that way I believe, to increase the aircraft options available. Anyhow, I dipped the canopy and blisters with Johnsons Klear (or equivalent)
When they were dry enough to handle, i held the blister in position and using a small brush or, as i did, a cocktail stick I ran some more Klear round the blister using its natural capillary / flattening properties.
The new Klear re melts the dry klear on both the blister and canopy bonding them firmly when dry.
Hopefully this shows what I am on about.
Once they are fully dry only the hardest of knocks will remove them and if they do need moving or re attaching another dose of Klear will do the job.