Hi this is the first reply I have done so please bare with me, my friends and I bowl at Shrewsbury UK we have no local proshop so to keep my gear in top shape I got the haus resurfacing system had the machine shipped to me about 2 years ago and it is the best you can get bar none local bowlers who know of me use my service not had one complaint.The directions on the L/M website to get your ball back to OOB finish is close to what you can get on the Haus you must remember that the finish from the burgundy green grey and white can also be affected by how long each one is used and how used it is but all I wanted to say was if you can find somebody who has the system USE IT you will not be disappointed
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Dont blame your kit you said to drill it that way